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Kisuke-CZE
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).
Murple2
QUOTE(Kisuke-CZE @ Sep 21 2018, 01:36 PM) *
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).


I too have encountered the same thing, although I have never noted the battery level other than knowing it has not been empty. It hasn't happened enough to be annoying, but certainly more than once.
Murple2
I continue to have this issue and have a few more observations

>it can happen at any battery level (happened a couple of times while I was in the high 90s)
>it seems to happen after doing an action e.g. clicking a link or opening an app. could this be related to a touchscreen event as it has always happened after touching the screen? I suspect not but i don't want to rule it out. my money is on a power management issue and not switching states gracefully

this will be a tough one to debug. any suggestions anyone?
Kisuke-CZE
Hi,

since I started this thread, I would like to post a update about mine case.

After discussion with Planet Computers support and another issue I ran into (right hinge below screen cracked on one side when opening device), I had to sent my Gemini back to UK.
They promised they will look at both issues.
Now, Gemini is on way back to me, so I will see if they fixed both things. They say, they replaced bottom body.

From mine side of view that random turnoff issue looked like battery was unable to supply enough power to electronics. This is just mine guessing, since this turnoff occurred only on high power/energy demanding activities (phone calls, running multiple power consuming applications). Planet Computers probably know best, because they designed that device.
Dixit
QUOTE(Kisuke-CZE @ Oct 26 2018, 12:51 PM) *
Hi,

since I started this thread, I would like to post a update about mine case.

After discussion with Planet Computers support and another issue I ran into (right hinge below screen cracked on one side when opening device), I had to sent my Gemini back to UK.
They promised they will look at both issues.
Now, Gemini is on way back to me, so I will see if they fixed both things. They say, they replaced bottom body.

From mine side of view that random turnoff issue looked like battery was unable to supply enough power to electronics. This is just mine guessing, since this turnoff occurred only on high power/energy demanding activities (phone calls, running multiple power consuming applications). Planet Computers probably know best, because they designed that device.


Thanks for the update.

Wow, that's some scary issues you had with the Gemini.
gymbo
QUOTE(Kisuke-CZE @ Oct 26 2018, 12:51 PM) *
Hi,

since I started this thread, I would like to post a update about mine case.

After discussion with Planet Computers support and another issue I ran into (right hinge below screen cracked on one side when opening device), I had to sent my Gemini back to UK.
They promised they will look at both issues.
Now, Gemini is on way back to me, so I will see if they fixed both things. They say, they replaced bottom body.

From mine side of view that random turnoff issue looked like battery was unable to supply enough power to electronics. This is just mine guessing, since this turnoff occurred only on high power/energy demanding activities (phone calls, running multiple power consuming applications). Planet Computers probably know best, because they designed that device.

I too had a unexpected shutdown recently. It was when I connected another phone through the hub (which is reported to draw around 10% battery power an hour by itself when IDLE...), which also led to the phone being charged by the Gemini! So I would agree, it seems to be an issue of not being able to provide enough "juice". It was complaining that there was not enough power left in the battery before shutting down (it was around 40%). I restarted the Gemini, and it reported about 30 % of battery left when it turned on. When connecting a battery-pack to the hub I had no problems...

So it is a problem with the battery, or are we just expecting, and using our Geminis more, than "normal" phone users?? ph34r.gif rolleyes.gif tongue.gif
Kisuke-CZE
Well, I am not sure what the problem is. Not a pro in this industry. Just a curious user.

But do you remember Apple was doing some precautions to prevent those unexpected turn-offs by reducing performance of the device?
Can be same issue here. I can imagine some firmware could limit that issue. Since Gemini is not a gaming device (but it can handle GZDoom smile.gif ), I do not see problem here. I believe power management firmware should not allow more energy consumption than battery is able to supply.

I am not mad at Planet Computers. I signed up for this (being a beta tester for this product) when i backed it on Indiegogo. Since this device is still far more superior for me than any other phone I had in last years (I was probably so much satisfied only with my Treo 680, nothing since then was that good), I hope issues will be resolved. Or I hope this will be lesson to learn what was wrong and it will be improved in 2nd gen device.
gidds
QUOTE(Kisuke-CZE @ Oct 27 2018, 09:56 AM) *
I am not mad at Planet Computers. I signed up for this […] when i backed it on Indiegogo. Since this device is still far more superior for me than any other phone I had in last years

That seems a very reasonable attitude!

The Gemini is far from perfect — but it's here, and in many ways it's better than we hoped.  A few of the problems have already been sorted (e.g. the headset buttons when the lid is closed), and others will probably get solved in software or (hopefully) in a future version.  We shouldn't be blind to its faults, of course; but neither should we concentrate unduly on them.  It's still a wonderful device!
Kisuke-CZE
Hi,

just posting new update. Since it belongs in this thread, I post it here.

On this monday I returned to my Gemini as a daily driver. It was again my replacement of computer and phone in one device. From monday, it was OK, until today. Expect one thing - periodically disappearing SD card from the system (reboot always solved that) - which keeps happening since update to Android 8.1.

Today (Wednesday) I was on a way to another city. I accept that I am probably putting more load than avarage user on Gemini. But I believe good device should handle it (other phones does).
My gemini was with microSD card inserted. Bluetooth connected to my car. 4G LTE connected to carriers network.
I arrived in area where was poor reception of wireless network, so Gemini falled to 2G network (EDGE data connection). I fired up firefox browser, and suddenly before page loaded, gemini just turned off like before.
After I tried to turn it on (3 times), it did not even loaded - power-off happened on android loading screen with rotating planets.
I let gemini turned off about 10 minutes to rest. Then it powered on like nothing ever happened with 59% battery.

So issue is definitely not resolved.
Penorek
Hi,

"periodically disappearing SD card from the system (reboot always solved that)

I have the same problem but no solution.

Penorek
novaldex
I'm experiencing the same problem, but only when i'm active with the device (app launching seems the most likely time).

However it can happen at any battery charge level, i'm sure the first time was when the battery was ~80%
gidds
Has anyone suffered this on Android 7, or is it definitely a problem with Android 8?

(It's worries like this that have prevented me from upgrading yet…)
gymbo
QUOTE(gidds @ Jul 8 2019, 06:16 PM) *
Has anyone suffered this on Android 7, or is it definitely a problem with Android 8?

(It's worries like this that have prevented me from upgrading yet…)

It has happened on 7 for me as well, but seems more "prominent" on 8... (And what the battery percentage is, really doesn't seem to matter...)

It seems there is a miss-match with how much power the battery can "produce", and how much power the Gemini can "draw"...?

I've had it happen randomly in fairly "normal" use on 7, but a way to insure it will happen is by using the hub connected to a fairly large HDD... (Powering the hub will prevent this, and you can then use almost any size HDD connected to the Gemini blink.gif )

I've had trouble opening the Gemini when on a call without it shutting down, both on 7 and 8, but, like I stated earlier, it seems more "prominent" on 8.

The battery drain (which seems worse on 8 than on 7) has become better after updating some "service" that had to do with battery (optimization) on the Play Store. And it seems even better after the latest "crash" (I might have actually drained the battery completely, and not just had it "overuse it")! So now I get a few days out of it again, so it seems the battery drain has gotten better... (NO, it doesn't drain the battery better, it's the other kind of "better", where it now behaves better tongue.gif )

So haven't really tried opening the Gemini while on a call now after the last "crash", but hopeful that it might now be possible to access the phone and things like messages, mail and files, while on a call, so I can use it more "normally" (for me!) again.
Penorek
In my way is it only a problem since Oreo
SNi
Mine has recently started to "turn off" as well. However, it does not appear to have anything to do with the battery level. It has only happened when I have been using the phone... After a couple of minutes the Gemini suddenly is dead, requiring a Esc longpress to come back to life. Still on 7...

SNi

QUOTE(Kisuke-CZE @ Sep 21 2018, 04:36 AM) *
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).

Dixit
I experienced these kind of shut-downs on my Gemini as well, both on Android 7 as on 8. I do think, that the battery is getting worn out.

It is getting stranger and stranger. Today the Gemini was at 33%. The screen suddenly went orange (power safe mode) and I saw the battery percentage drop to 0%, followed by an immediate shut-down. This was, therefore, not a sudden black-out, it went 'controlled', be it, that the battery dropped from 33% to 0 in two seconds.

I then restarted the Gemini and it came back on 25%. Euh, ok...
After which the power steeply dropped and within three minutes it was again on 5%, after which I put it on the charger. Now, some 25 minutes later, it is happily at 34% and charging.

I would not be too happy with a battery failing after only one year of service.
RSS
I recently started getting this issue too. I'll be using Termux just below 50% battery life and all of a sudden, the battery saver mode will enable (that orange/red theme) and the Gemini will turn off.
This never used to happen with Android 7, only 8. I have noticed the battery life becoming much shorter than what it used to be, so I do hope this is a firmware issue. If not, then I also wouldn't mind purchasing a new battery.
jakfish
I can chime in too: stock Nougat often screen-blanks when I start calling through Skype. It doesn't shut down the machine, the call still goes through (mostly), but a Skype call clearly makes a power demand the Gem can't meet.

This happens regardless of battery level.

Jake
smapmap
I experienced the random shutdown issue with Oreo - I contacted Planet and they advised re-flashing back to 7 until they figured out what was causing the issue. Seems to be related to the battery calibration as far as I can tell but meditek haven't been able to pinpoint it yet. Back to 7 it is for me....
gidds
Hmmm — my policy of sticking to Android 7 for the time being seems to have paid off! (Unfortunately...)

Now, if only there was some way of preventing Firmware Update notifications twice a day...
Konehaltia
I've had the same random shut-off problem with my Gemini for over a year now.

At first, it seemed to occur only rarely. I didn't take any specific notes, but it seemed to generally happen in conditions with bad radio connectivity, like on a moving train or on a mountain, and only when the device was in active use. It never shut off in my pocket. Every time, the screen just went blank with no warning. Yet, when I started it back up, it would have a high battery level and continue to run normally for hours more.

More recently, the shutoffs became more frequent. Sometimes, after I started it up after the first shutoff, it would happen again as soon as it finished booting and got to the PIN code screen. Sometimes this even repeated 3 or 4 times.

The shutoffs have never happened while the Gemini is plugged into the official USB charger, so it definitely seems like a power issue.

I'm not sure if the reason it's been getting more frequent is the Android 8 upgrade or not. It could simply be the battery wearing out over time, since recently I've also been seeing some normal signs of the battery getting old, such as it showing 10% left and then suddenly jumping to 0% and showing a "powering off" message. To be clear, the low-battery shutoffs are a different issue that I've also had with other phones when the battery gets old. The blank-screen shutoffs are different - the battery level doesn't matter at all, and the shutoff is instant, with no message.

At any case, I got to borrow my friend's almost-unused Gemini a couple of weeks ago. I upgraded it to Android 8, and I've been using it normally ever since. It hasn't shut off once. Either it doesn't have the same bug, or the battery on it is still fresh. At any case, the problem is clearly not caused by Android 8 alone, though it may of course happen more often if Android 8 uses the battery in a different way.

However, the new Gemini does have the disappearing SD card issue mentioned earlier in this thread. I didn't use an SD card with the old Gemini, so I hadn't seen the issue before, and don't know if it would have happened with Android 7.
Radovan Garabík
QUOTE(Konehaltia @ Jul 22 2019, 03:06 PM) *
I've had the same random shut-off problem with my Gemini for over a year now.


It happened to me only about twice (in half a year or so). I was not paying much attention to it, considering it a random fluke, but I remember once the Gemini was quite maxed out (connected via HSDPA and running as an access point, while simultaneously I started a browser on it). Perhaps there is no reasonable margin of error in the maximum battery current and random increase in power consumption switches on the protective circuit and cuts the power.
loop
My Gemini also turned off a couple of times (in a row) when the battery level was below 40%. I drained the battery to 5% (running Linux as Android obviously cannot be used for that), then turned the device off, charged to 100%, and started Android. The problem seems to have disappeared.
Ifanafi
Yep, my Gemini SUDDENLY (and invariably) shuts itself off / powers down during EVERY PHONE CALL.

Planet says it is a known issue (with "select" carriers?).

Some users say they've dropped their Gemini and suggest that a hard impact might be the cause or a causative factor.

BTW, I had never dropped the device until recently and thereafter (coincidently?) this shut down issue began.

Frankly, this sudden powering OFF has rendered my Gemini g-damn USELESS.

Ifanafi

-------------------------------------
QUOTE(Kisuke-CZE @ Sep 21 2018, 08:36 AM) *
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).

Ifanafi
Ditto the same issue exactly.

My Gemini is now USELESS as a cell phone.

Planet says to revert back to Android 7 (from upgrade 8) until they release a fix soon.

We know what 'soon' means in Planet Speak....!

Ifanafi
-----------------------

QUOTE(SNi @ Jul 8 2019, 07:34 PM) *
Mine has recently started to "turn off" as well. However, it does not appear to have anything to do with the battery level. It has only happened when I have been using the phone... After a couple of minutes the Gemini suddenly is dead, requiring a Esc long-press to come back to life. Still on 7...

SNi

QUOTE(Kisuke-CZE @ Sep 21 2018, 04:36 AM) *
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).


Ifanafi

Update From:

Customer Care (Planet Computers)
Sep 4, 12:53 WEST

"Unfortunately, we have not yet been provided with information on when there will be a fix. All we can say and know is that both Planet and Mediatek are looking into the issue to try and find a fix for it.

As it stands right now, reverting to Android 7 would the best stable choice.

We're sorry for any inconvenience caused.
Kind regards,
Customer Care Team"

...and so it goes from nice toy to useless (as a cell phone) POS.

Ifanafi

--------------------------


QUOTE(Ifanafi @ Sep 3 2019, 03:59 PM) *
Ditto the same issue exactly.

My Gemini is now USELESS as a cell phone.

Planet says to revert back to Android 7 (from upgrade 8) until they release a fix soon.

We know what 'soon' means in Planet Speak....!

Ifanafi
-----------------------

QUOTE(SNi @ Jul 8 2019, 07:34 PM) *
Mine has recently started to "turn off" as well. However, it does not appear to have anything to do with the battery level. It has only happened when I have been using the phone... After a couple of minutes the Gemini suddenly is dead, requiring a Esc long-press to come back to life. Still on 7...

SNi

QUOTE(Kisuke-CZE @ Sep 21 2018, 04:36 AM) *
Hi guys,

I am using mi Gemini as my daily driver. I use Android, because it seems to be only full featured OS so far.
Recently I noticed strange behavior.

My Gemini is sometimes randomly turning off. It happens when battery is about 38%. But it happened about 30% too. But never when batter was full.
If device is in idle mode, it is OK. But when I am doing something - browsing in Firefox for example, or in the middle of call with someone - Gemini screen just turns black. Then I must turn it on by long pressing "On" button. It boots up Android. And if I do same thing (run Firefox) right after boot, it mostly crashes to black screen again. If I wait for few minutes after boot it is in most cases OK (for some time), sometimes I must charge battery and then it is OK.

Anyone with same issues? Or any thougts? From mine point of view it seems to be some problem with battery or with Gemini itself. Because it happens only on energy-intensive activities (which I suppose having phone call or running big app like Firefox is).



smapmap
QUOTE(Ifanafi @ Sep 4 2019, 07:42 PM) *
Update From:

Customer Care (Planet Computers)
Sep 4, 12:53 WEST

"Unfortunately, we have not yet been provided with information on when there will be a fix. All we can say and know is that both Planet and Mediatek are looking into the issue to try and find a fix for it.

As it stands right now, reverting to Android 7 would the best stable choice.

We're sorry for any inconvenience caused.
Kind regards,
Customer Care Team"

...and so it goes from nice toy to useless (as a cell phone) POS.

Ifanafi


There must be a battery calibration issue with the Gemini - this is my experience...
- on Nougat, sometimes I'd plug it in and wake up the next day and the battery hadn't charged but was super hot. Bizarre.
. Sometimes on Oreo, I'll see the phone randomly turn off without warning.
- Other times the battery will drain to zero super fast, and yet when I plug it into charge (whilst off) will sometimes register as 40-50% full. The OS and battery are out of kilter.
- I rarely get more than 8 hrs before I have to charge it again (Oreo seems even worse then Nougat for power utilisation) - I'd expect 2 days of usage out of a 4400mAh battery...

I can't help but think all of this is related. There is something not right about the way the Gemini has been set up - I think it really needs to be optimised.

Whilst Planet figure this out, I've tried draining my battery to zero, restarting a few times until the Gemini turns itself off, and then charging from zero to 100% with the phone off. I then disconnect the charger and turn the phone on. Hopefully the phone will register a full charge, if not I plug it in whilst on until 100% is reached. This seems to have helped a bit but it's not 100%.
mithrandir

Hoping for higher capacity 3rd party replacement batteries in the future...
Unfortunately Planet did not include a larger one with the Gemini or the Cosmo...
smapmap
QUOTE(mithrandir @ Sep 5 2019, 09:31 PM) *
Hoping for higher capacity 3rd party replacement batteries in the future...
Unfortunately Planet did not include a larger one with the Gemini or the Cosmo...


You think a 4000mAh battery woudl last at least a day though - the screen must be an absolute power hog??
jakfish
I think my battery is shot. Anybody know where we can find replacements?

Jake
Radovan Garabík
QUOTE(Radovan Garabík @ Jul 23 2019, 01:54 PM) *
QUOTE(Konehaltia @ Jul 22 2019, 03:06 PM) *
I've had the same random shut-off problem with my Gemini for over a year now.


It happened to me only about twice (in half a year or so). I was not paying much attention to it, considering it a random fluke, but I remember once the Gemini was quite maxed out (connected via HSDPA and running as an access point, while simultaneously I started a browser on it). Perhaps there is no reasonable margin of error in the maximum battery current and random increase in power consumption switches on the protective circuit and cuts the power.


Replying to myself...

It happened 3 times today. The first time was after an hour or so of Gemini working as a SIM->wifi hotspot, some minutes I switched the hotspot off and started to use the Gemini "the usual way". The battery was at about 40%.
I looked at the battery utilization graph, and noticed that after the spontaneous turning off, the 1st derivative was maybe about twice as big (in absolute value) as usual, for about 10 minutes.

The next time was after an hour, when the battery reached 14%. The rate of battery discharge was normal this time.

The third time was again when the Gemini was working as a wifi hotspot, but this time it has been charging (using the official Planet charger), and it might have been already fully charged (or very close).

After the first time, I started to suspect the battery experiences sudden drop in the charge and is perhaps not able to sustain the power/current requirement. But after the third time... I do not know.
zsalab2
I had the same issue, reverted to android 7.1.

No problem since (AND battery time doubled).

The only problem is the firmware notification which is impossible to get rid off....
gidds
This raises issues about the Cosmo... While it's possible to keep a Gemini on Android 7.x (or roll back to it), what version with the Cosmo be supplied with? If 8.x, will it suffer the same problems, and if so, will it be possible to install 7.x on it?
gymbo
QUOTE(gidds @ Sep 15 2019, 08:26 PM) *
This raises issues about the Cosmo... While it's possible to keep a Gemini on Android 7.x (or roll back to it), what version with the Cosmo be supplied with? If 8.x, will it suffer the same problems, and if so, will it be possible to install 7.x on it?

The Cosmo is supposed to ship with Android 9, if that will be better or worse than 8 (or 7...), is anyone's guess... tongue.gif

But Planet should be aware of the "problem", so hopefully they will fix it for the Cosmo, and hopefully get that implemented in the Gemini as well???

I sometimes, on Gemini with Android 8, get almost better performance (battery wise), and sometimes it almost doesn't last a full day, so it seems there are just in certain conditions it eats up battery... So to find out what exactly eats up battery seems to be difficult (as someone else have pointed out in this, or another, thread about the battery-perfomance of the Gemini). And the battery usage info in Android is kind of useless as well. I haven't really used my phone much the last two days, but it now shows "Phone not in use" for 1d, 19h, 14m, out of 1d, 19h, 14m time since last full charge. And I have been using it... (and probably at least for a few hours...) huh.gif sad.gif blink.gif
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