OESF Portables Forum
Model Specific Forums => Cosmo Communicator => Cosmo Communicator - Android => Topic started by: voronaam on October 13, 2020, 06:47:56 pm
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I do not have Android booting on my device and need help flashing the original signed image back to it. What I have tried so far:
1. Downloaded v21 firmware from the official site https://support.planetcom.co.uk/download/CosmoFirmware/fota_v20_v21_update/Updatepackage.zip
2. Downloaded v19 from a link on this forum: https://drive.google.com/file/d/1A9K04eyaXglgBX9y5sVVt3e6pVZGRA0Y/view
3. Installed two versions of the SP Flash Tool from https://spflashtool.com/download/
4. Downloaded various scatter files from this forum
I tried various combinations of scatter files and unpacked firmware folders with various versions, but nothing seems to work. Older version of the SP Flash Tool says I have to update, newer version refused to read old scatter files. When fed a new scatter file from this forum (Cosmo_MT6771_Android_full_stock_edited_scatter.txt) it complains that pgpt partition file is missing - and indeed I do not see either pgpt.img or pgpt.bin in the firmware archives I downloaded.
I have reached out to Planet Computers about a month ago, but have not heard back from them.
As a side note, Debian and TWRP boot up just fine on the phone. Only Android (either stock or rooted) have issues for some reason.
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I do not have Android booting on my device and need help flashing the original signed image back to it. What I have tried so far:
1. Downloaded v21 firmware from the official site https://support.planetcom.co.uk/download/CosmoFirmware/fota_v20_v21_update/Updatepackage.zip
2. Downloaded v19 from a link on this forum: https://drive.google.com/file/d/1A9K04eyaXglgBX9y5sVVt3e6pVZGRA0Y/view
3. Installed two versions of the SP Flash Tool from https://spflashtool.com/download/
4. Downloaded various scatter files from this forum
I tried various combinations of scatter files and unpacked firmware folders with various versions, but nothing seems to work. Older version of the SP Flash Tool says I have to update, newer version refused to read old scatter files. When fed a new scatter file from this forum (Cosmo_MT6771_Android_full_stock_edited_scatter.txt) it complains that pgpt partition file is missing - and indeed I do not see either pgpt.img or pgpt.bin in the firmware archives I downloaded.
I have reached out to Planet Computers about a month ago, but have not heard back from them.
As a side note, Debian and TWRP boot up just fine on the phone. Only Android (either stock or rooted) have issues for some reason.
Try fastboot. There is a lot of posts here about flashing using fastboot.
Please see below and read everything to understand.
You can use these images to restore to a v19 firmware:
https://www.oesf.org/forum/index.php?topic=35879.90
Please, Use full images. ( I think it is the same of your image )
As a guide reference ( fastboot) please see:
https://www.oesf.org/forum/index.php?topic=35879.60
You can also flash lk2, scp2, sspm_2 and tee2. ( same as lk, scp, sspm and tee ) and also preloader and recovery.
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Thank you. I have tried those.
fastboot never worked for me.
$ fastboot flash boot boot-v23-stock.img
target reported max download size of 134217728 bytes
sending 'boot' (32768 KB)...
OKAY [ 1.761s]
writing 'boot'...
FAILED (remote: not allowed in locked state)
finished. total time: 1.763s
I tried this (pressing volume up on the device), and it did not do anything:
fastboot flashing unlock
...
(bootloader) Start unlock flow
FAILED (remote:
Unlock operation is not allowed
)
finished. total time: 7.117s
[
That is why I was hopeful to use SP Flash Tool.
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Thank you. I have tried those.
fastboot never worked for me.
$ fastboot flash boot boot-v23-stock.img
target reported max download size of 134217728 bytes
sending 'boot' (32768 KB)...
OKAY [ 1.761s]
writing 'boot'...
FAILED (remote: not allowed in locked state)
finished. total time: 1.763s
I tried this (pressing volume up on the device), and it did not do anything:
fastboot flashing unlock
...
(bootloader) Start unlock flow
FAILED (remote:
Unlock operation is not allowed
)
finished. total time: 7.117s
[
That is why I was hopeful to use SP Flash Tool.
Before to use fastboot, you must first enable development options in android and inside them, unlock oem .
Good luck
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Before to use fastboot, you must first enable development options in android and inside them, unlock oem .
This is kind of hard to do when Android does not boot :) Are there any other options? Can I enable it from TWRP? That boots.
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This is kind of hard to do when Android does not boot :) Are there any other options? Can I enable it from TWRP? That boots.
Nevermind, I managed to flash a few partitions with SP Flash Tool and it has completely bricked the device. I have some backups from it and will try to do something. But otherwise looks like mailing it back to Planet Computers is the only option...
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Before to use fastboot, you must first enable development options in android and inside them, unlock oem .
This is kind of hard to do when Android does not boot :) Are there any other options? Can I enable it from TWRP? That boots.
I really don' t know.
I saw this : https://www.getdroidtips.com/unlock-bootloader-mediatek-device/
Try fastboot oem unlock .
Good luck .