CM 11 to CM 9 Downgrade ( Yaffs2 to ext4 ) - Android Q&A, Help & Troubleshooting

Verdict Device :- Samsung Galaxy Ace(I) 5830i (cooperve)
I have a problem downgrading to CM 9 after installing a CM 11 nightly through a MTD CWM Recovery. I've searched but no success so far. I've tried doing the following things so far:-
1. Flashed Stock ROM via Odin
Successfully flashes but then fails to mount /data (probably because its still yaffs2)
2. Flashed stock based and CM9 via the MTD recovery.
Shows Installed but doesn't boot. Because it writes to EMMC but I have MTD.
3. Flashed modded CM9 zip with CM 11 updater binary and script.
No boot.
4. Used a custom made update zip for formatting partitions to ext4 but after flashing CM9. No boot.
NOTE:- The only recovery that can mount the partitions on my device is 6.0.5.3 with MTD.
Please help :thumbup:

Related

[Q] [SOLVED] Signature verification failed while flashing by cli

I'm on a Samsung Galaxy S i9000 and I'm using Devil2 kernel 0.65 with its recovery. I'm trying to make a script that downloads the latest CM9 Nightly and installs it automatically.
But when I tried to flash from cli in recovery, doing
mount /sdcard
recovery --update_package=/sdcard/packagename.zip
(in this case, it was a radio I already flashed, just to test)
it complains for the signature check, even if I disabled it!
Can you help me?
Thank you for the support
[EDIT] Self-solved using TWRP. Now the problem is how to flash multiple files at once without the self-reboot after each flash...! [/EDIT]
[EDIT2] Completely solved using OpenRecoveryScript system shipped with TWRP [EDIT2]

[Q] Apparently can root, apply CWM, flash rom, but doesn't

Hello Everybody,
my boss got me a Galaxy ACE S5830i in order to test some app development and I immediately managed to root it and install a custom ROM.
These were the steps I took
1- I flashed the update.zip I found around the web, for example here -> http://www.theandroidroot.com/root-install-cwm-recovery-samsung-galaxy-ace-s5830i/
2- I flashed CWM 5.0 and immediately, without rebooting, saw the new Recovery. So it really did install!
3- I updated to CWM 6
4- I flashed thunder kernel in order to make the CWM permanent -> http://forum.xda-developers.com/showthread.php?t=2335947
5- I rebooted the phone in recovery mode and got the CWM. Everything was fine up to now
6- I flashed a ROM (after wiping everything). Actually, several roms. I tried first with CGM, then with Aroma and Retribution Beta. http://forum.xda-developers.com/showthread.php?t=1806471 All of them managed to install but none of them works. What ALWAYS happens is that the ROM installs, then I reboot and the phone does not go past the Samsung Logo. Then, and here we come to the weirdest part, when I reboot in recovery mode in order to flash another rom... I get the stock recovery! No CWM, no customizations!
What's happening, in your opinion? I tried to flash a custom ROM with Odin as well, but being on Linux I had to use JOdin and could not manage to flash anything because (as it ALWAYS happens with JOdin) I was not able to load a suitable PIT file. No success with wine+odin as well.
Please, could somebody help me? I can't use my boss phone, and can't return it to him until I get a working ROM on it
Thank you in advance
P.S. When I get to the Recovery I see some rows to the bottom:
-- Appling Multi-CSC --
E:failed to mount /system (Invalid argument)
E:failed to mount /system (Indalid argument)
and (I know 'cause I tried) I can't mount or format the /system partition. Maybe it's related, maybe it's not...
ilsecondodasinistra said:
Hello Everybody,
my boss got me a Galaxy ACE S5830i in order to test some app development and I immediately managed to root it and install a custom ROM.
These were the steps I took
1- I flashed the update.zip I found around the web, for example here -> http://www.theandroidroot.com/root-install-cwm-recovery-samsung-galaxy-ace-s5830i/
2- I flashed CWM 5.0 and immediately, without rebooting, saw the new Recovery. So it really did install!
3- I updated to CWM 6
4- I flashed thunder kernel in order to make the CWM permanent -> http://forum.xda-developers.com/showthread.php?t=2335947
5- I rebooted the phone in recovery mode and got the CWM. Everything was fine up to now
6- I flashed a ROM (after wiping everything). Actually, several roms. I tried first with CGM, then with Aroma and Retribution Beta. http://forum.xda-developers.com/showthread.php?t=1806471 All of them managed to install but none of them works. What ALWAYS happens is that the ROM installs, then I reboot and the phone does not go past the Samsung Logo. Then, and here we come to the weirdest part, when I reboot in recovery mode in order to flash another rom... I get the stock recovery! No CWM, no customizations!
What's happening, in your opinion? I tried to flash a custom ROM with Odin as well, but being on Linux I had to use JOdin and could not manage to flash anything because (as it ALWAYS happens with JOdin) I was not able to load a suitable PIT file. No success with wine+odin as well.
Please, could somebody help me? I can't use my boss phone, and can't return it to him until I get a working ROM on it
Thank you in advance
P.S. When I get to the Recovery I see some rows to the bottom:
-- Appling Multi-CSC --
E:failed to mount /system (Invalid argument)
E:failed to mount /system (Indalid argument)
and (I know 'cause I tried) I can't mount or format the /system partition. Maybe it's related, maybe it's not...
Click to expand...
Click to collapse
can u get temporary cwm recovery when selecting
'apply update from sd'
then look at this thread
forum.xda-developers.com/showthread.php?t=1118688
as9333 said:
can u get temporary cwm recovery when selecting
'apply update from sd'
then look at this thread
forum.xda-developers.com/showthread.php?t=1118688
Click to expand...
Click to collapse
Hello,
thank you for answering.
I can temporary get to CWM recovery for sure, but I don't know how to push the erase_image file (that I found) to the device. I'm only able to copy files on the SD, using another phone, and then flash them from CWM. Is there a way to make adb able to detect the device even when it's in recovery?
Thank you
ilsecondodasinistra said:
Hello,
thank you for answering.
I can temporary get to CWM recovery for sure, but I don't know how to push the erase_image file (that I found) to the device. I'm only able to copy files on the SD, using another phone, and then flash them from CWM. Is there a way to make adb able to detect the device even when it's in recovery?
Thank you
Click to expand...
Click to collapse
First try to flash another rom..if that not work then flash stock rom from odin..
Here is the link for unbrick your device.go here and try to unbrick..
http://forum.xda-developers.com/showthread.php?t=1840645
Sent from my GT-S5830i using Tapatalk 2
Are the ROMs you tried based on CM7/9? Because if they are, you need to format your system partitions to EXT4. You can do that with the multi-formatter.
Also, you say that you have your stock recovery back. Check the ROM zips that you flashed for any boot.img. If there is, check which kernel and which version. Some older kernels still have stock recovery.
As even stock recovery cannot mount /system, clearly your system partitions are corrupt. Format with the multi-formatter and flash a CM7/9 based ROM or flash back stock firmware via Odin.
If you choose the multi-formatter, remember to flash a kernel afterwards. And if you prefer, one with a permanent CWM.
Sent because I <3 Aerith

[Q] cant mount /system

I was on 4.4.4 and i flashed 5.1.1 rom. it didnt flash. but gave me no error. So when i flash a new rom with cwm or odin, (even with 4 file stock rom and repartition thing) i still cant flash another rom. İt flash kernels or gapps succesfully but when i restore my nandroid backup or flash a rom it shows succesfull but when i check system it has 26 mb. What should i do
Maybe flashing stock rom and after installing custom recovery fix issue but maybe there is an error at backup

cannot boot any rom (i9300t)

ok so i had twrp and blisspop rom.. fine and working
wanted to flash s6 ported 4.4.4tw rom
twrp kept saying cannot mount /preload (no such device)
flashed the rom
stuck at bootlogo
/preload mount failed
/preload format failed
tried CWM and twrp 3
no luck
tried to flash 3 different roms still no luck
anyone help???
I9300t isnt the I9300. If you've flashed a rom for an I9300 expect issues.
Flash a stock rom via odin and do more research.
Sent from my HTC One M9 using Tapatalk

Unbricked device will only work with stock ROM

Hi. I brought a cheap TF201 that wouldn't boot, thinking it would be an easy fix. It's working with stock ROM now, but I can't flash anything else to it. The story goes like this:
When I got the tablet, it would only boot into TWRP 2.6.something. Trying to boot normally would just bootloop. So I transferred some ROMs to it, KatKiss 6 and 5 and cyanogenmod 11, and tried installing. They all failed with somewhat different errors, like unable to mount /system or failed to create symlinks and none of them would boot. So I reformatted /system with EXT4. Some of the ROM files would still not install, but one did (can't remember which), however it would still just bootloop. cyanogenmod 9 would complain the device was a tf201t and and not a tf201. So I went for the stock JellyBean ROM. It failed to mount /system. I tried reformatting /system to ext3 and the ROM installed and worked! But it also tried to change the recovery back to stock, breaking it. So I flashed the latest TWRP blob for JellyBean with fastboot, and got recovery back. This recovery is (TWRP 2.6.3) is a bit different, and missing the option to change filesystem. I tried installing cyanogenmod again, but it broke /system again. As the new recovery didn't have the option to change filesystems, I used the terminal to mkfs.ext2 /dev/block/mmcblck0p1 (the recovery didn't have mkfs.ext3) and installed the stock ROM again. So, this is where I'm at now. Having a tablet that works using the stock JellyBean ROM on ext2, but not anything else.
What should I try from here?

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