Recent Posts

31

Gemini PDA - Hardware / Re: Replacement Planet Battery

« Last post by covex on February 07, 2026, 11:33:39 am »

My Gemini shuts down showing half the battery used, then on restart shows something like 1%. So I suspect the battery is dying. If anyone knows a replacement, and _how_ to replace it, please share. I know how to open a top cover, there is a tool for that, but how to open a bottom with the battery?

32

New products and alternatives / Mecha Comet portable Linux device on Kickstarter

« Last post by Varti on February 02, 2026, 10:24:29 am »

The Mecha Comet is a modular handheld Linux computer that lets you swap out the parts to suit what you want to use it for. A keyboard, a gaming controller and an IO board module have been announced so far.

https://www.xda-developers.com/i-love-this-linux-handheld-computer-and-you-can-help-fund-it-right-now/

The device can be configured as follows:
- an AMD64 I.MX8M Plus CPU, 4-core, up to 1.8 GHz or an I.MX95 CPU, 6-core, up to 1.8 GHz
- 2GB, 4GB or 8GB RAM
- 64GB or 128GB eMMC storage, an external MicroSD card or an NVMe SSD disk can be used too, supported size up to 1TB
- a 3.92" AMOLED display

It will be available starting from May 2026 (I.MX8M Plus version) or September 2026 (I.MX95 version). The prices start from $189/€160 for the base model, the modules and all the other accessories must be ordered separately.

As a word of warning, this is a Kickstarter project, so keep in mind that the project might not reach its goal or the pledged money be returned.

https://www.kickstarter.com/projects/mecha-systems/mecha-comet-modular-linux-handheld-computer

Varti

33

Gemini PDA - Linux / Re: worth picking up a Gemini PDA today (2024) for Linux ?

« Last post by speculatrix on January 12, 2026, 08:45:21 am »

I too dust off my Gemini occasionally.

I set it up to triple-boot Android, Sailfish and Linux/Debian. if I knew there was an up to date version of linux for it, I would cheerfully drop the others.

I am somewhat vaguely hoping that the rise in arm64 linux with the likes of AWS's Graviton instances, that there will be some decent linux-on-arm64 development going on for us to tap into.

34

Gemini PDA - Hardware / Re: Gemini notification LED

« Last post by Oliver H. on January 06, 2026, 11:41:25 am »

As far as I can tell, LEDison only operates on the five LEDs in the center of the phone. Is that correct? I did try using LEDison for SMS notifications on these middle five LEDs, but it's unreliable.

Is the LEDison app supposed to control that left side LED, too?

35

Gemini PDA - Hardware / Re: Gemini notification LED

« Last post by Zarhan on January 04, 2026, 04:56:13 am »

Did you configure the LED using LEDison app (from Planet)?

36

Gemini PDA - Hardware / Gemini notification LED

« Last post by Oliver H. on December 16, 2025, 04:44:35 pm »

If anyone is still out there...The red LED at the left of the case has stopped blinking for SMS notifications. I know the LED is still functional since it comes on for charging, so this must be a setting somewhere, but, for the life of me, I cannot find it.

Recently, some screen resolution settings mysteriously reverted to default, so I think whatever bug happened to have reset the LED notifications, too. For clarity, I'm talking about the single LED that is on the left side of the closed case. I know I can use LEDison for SMS, but that has always been unreliable and buggy since it doesn't operate like normal Android notifications.

Feel free to tell me why I'm crazy to still be using my Gemini in 2025. I don't do anything requiring a password on it, tho, so I'm not too concerned about security.

Thanks!
Oliver H.

37

Cosmo Communicator - Android / Rooted Android issues

« Last post by CJ_Sucks_at_Life on December 08, 2025, 10:26:46 am »

I have been trying to get something proper running on this for a good while. Debian is out of date to massive degrees and most other linux's (ubports etc) are held back by the proprietary kernel.

I tried installing rooted android on the v3 pipeline. However whenever I install it through recovery mode. It boots and installs the option on the screen. However booting into the android install doesn't have a magisk installed to properly finish it. and Using a up to date magisk causes the boot screen to complain about "unverified boot". and just put me back in a distro where root is only half installed.

Would anyone be able to direct me to a proper up to date guide or help me with this issue?

38

Cosmo Communicator - Android / Re: Android Recovery missing partition and custom OS options?

« Last post by theGreedyGoblin on December 07, 2025, 12:34:36 pm »

it appears that the firmware for the codi now works, however i do not fully know what fixed this. The initial issue was that the firmware was an unrecognised version, and subsequently trying to update it appeared to fail, however seemingly by random the next day the codi was working again. im completely lost for why this could be the case but regardless this has left me with more questions than answers. However, my cosmo appears to work fine now, thank you for the advice.

39

Cosmo Communicator - Android / Re: Android Recovery missing partition and custom OS options?

« Last post by Varti on November 25, 2025, 11:55:25 am »

Hi,

have you tried flashing with both 'Aeroplane mode' and 'Do not disturb' ON? What error does the CoDi Assistant return?

Varti

40

Cosmo Communicator - Android / Android Recovery missing partition and custom OS options?

« Last post by theGreedyGoblin on November 23, 2025, 09:00:11 pm »

I am using a recently bought second hand cosmo communicator which has since been factory reset. When trying to update the android firmware outlined at https://support.planetcom.co.uk/index.php/Cosmo_Android_Firmware_Manual_Installation I have the issue that the recovery mode in which the "Change the partition table of your COSMO" and "Install Custom OS on your COSMO" options are entirely ommited.

Ive so far ruled out the SD card being the issue as ive tried multiple of varying capacity.
Ive tried every provided version of android including 19, 22, and 23.
Ive also tried installing linux only to encounter the same issue.
Possibly worth noting is that the text under the android character just before the recovery screen is in japanese despite the system language being set to english and having a US keyboard.

I am fairly unfamilar with android and am hoping that this is a simple oversight on my part, but any help or information would be appreciated!

EDIT: was able to update to android firmware v22 using by following https://www.oesf.org/forum/index.php?topic=36336.0 which seemed to resolve the issue with the options not appearing, however the codi has stopped working since doing this with the firmware not being recognised and unable to update automatically or manually.