Can't mount /data after flashing custom recovery - Micromax Canvas A1

Hi Guys,
I flashed stock ROM and is working fine.
If I flash any custom ROM , cant mount /data error comes and phone is stuck in boot loop.
Also, after going back to stock ROM, I found that I am not able to transfer apps to SD card which I used to do when I bought the phone.
This problem happened after flashing ROMs.
Pls help, its urgent. I am not able to flash Lolipop in my android.

Related

Cache

I tried to flash a ROM and accidentally deleted the Recovery files on my phone (running 2.2.1 EC05), and even after re-flashing stock I can't recover the E: Drive information. Any suggestions on how to restore the E: Drive on my phone, so that I can flash again. I was able to root the phone using Clockwork Mod version 3.0.0.5/6 however even the recovery mode of that will not allow flashing a new ROM. Any ideas anyone because I really need to flash this thing, I'm going through withdrawals.
Valiant23236 said:
I tried to flash a ROM and accidentally deleted the Recovery files on my phone (running 2.2.1 EC05), and even after re-flashing stock I can't recover the E: Drive information. Any suggestions on how to restore the E: Drive on my phone, so that I can flash again. I was able to root the phone using Clockwork Mod version 3.0.0.5/6 however even the recovery mode of that will not allow flashing a new ROM. Any ideas anyone because I really need to flash this thing, I'm going through withdrawals.
Click to expand...
Click to collapse
You could Odin your phone back to stock and start flashing again with instructions and files found here:
http://forum.xda-developers.com/showthread.php?t=1052813

[Q] Unable to mount /data

Hi,
I've just tried and failed to install the "cm-12-20150218-NIGHTLY-nicki" ROM on my phone. Specs are:
Official Android 4.3 Firmware
Model: C1904
Timeline:
Unlocked bootloader according to instructions at http://forum.xda-developers.com/showthread.php?t=2484428
Phone then got stuck in official boot animation (the colourful one)
Didn't bother flashing the "Elixer" kernel as suggested in above thread
Used fastboot to flash the boot.img from the CM zip file
Booted to recovery
Wiped data & cache
Flashed CM & GApps from external SD card
Restarted phone
Phone showed big Android robot animation and then went back to CyanogenMod Recovery
Looking at logs showed "Cannot load volume /misc" error
Found a forum post saying this thread helped with the above error: http://forum.xda-developers.com/xperia-m/development/cwm-twrp-recoveries-cm12-lollipop-t2979752
Tried flashing TWRP recovery (http://forum.xda-developers.com/xpe...very-cwm-twrp-recoveries-custom-roms-t3016507) within CyanogenMod Recovery, but it said the file integrity was bad or something
Used "fastboot flash boot FOTAKernel.img" to flash the above, which worked
Tried to wipe data from within TWRP, but got "failed to mount /data" errors
So the phone is now in a state where:
I can only boot into TWRP
I can't use ADB since the program on the computer won't detect the phone
Fastboot still works
I can't boot into Android
Something seems wrong with "/data"
Any ideas about where to go from here?
I was able to use Flashtool to flash the official firmware back on and boot into it as normal. After doing that and restarting the procedure to install CM12 2015-02-19, this time it installed just fine.
Although I still got errors about "Cannot load volume /misc". Hopefully they don't matter...
Now you have CM12 installed and it is working?
Had the same errors when I tried to flash CM12. Flashing CM11 worked fine but I could not get CM12 to boot...
xa.fr said:
Now you have CM12 installed and it is working?
Had the same errors when I tried to flash CM12. Flashing CM11 worked fine but I could not get CM12 to boot...
Click to expand...
Click to collapse
Yeah; it's installed and working fine. When I flashed the official firmware, (Android 4.3) I told Flashtool to flash everything including the kernel. That seemed to put the phone back into a good state, which allowed me to install CM12.
I'm not sure what caused the problem in my case. Maybe it was unlocking the boot loader.

Can't Find Any Partitions On TWRP

Hey guys, i think i messed up my internal storage partitions. Big story though. I have TWRP 2.8.6.0 but i can't flash/do anything, it won't find any partitions...not even sd cards. The phone can boot and works fine. Is there any way to fix the internal partition through the terminal? Or my only option is to flash stock rom and then flash again?
Greetings.
Hi Chrizz,
I think you have the same problem as me. Still no luck on solving.
http://forum.xda-developers.com/galaxy-ace/ace-2-help/gt-i8160-ace2-reset-t3200779
Greetzz
i installed a new rom with ace2nutzer's kernel (20150821 build) and my device became really laggy too. Then i flashed chrono kernel, it was working fine. But when i went to the recovery again it flashed twrp 2.8.6.0, probably from the chorono kernel but i used to have cwm recovery. Now the only thing i can see in TWRP is some systems files like efs,ramdisk, etc.
From the zip of twrp recovery (use twrp_2.8.7.0_280815.zip download it from developer section) Extract the file tmp/twrp.fstab and copy it to /ramdisk manually, you could use root Browser for doing that.
I solved the problem with this procedure

Boot loop issue

Hey guys, I just recently got some parts for my old One X to start playing with it again (bored with ios). I was running an older version of ViperXL and wanted to get lollipop so my goal was to put CM12.0 on my phone. My recovery was twrp but a version that was older so I had to update it. The in app update wasn't working so I updated cwm instead. When I did this I tried to boot to recovery and it would attempt to go to recovery but then boot back to the os.
Then I was trying to flash the recovery using fastboot which resulted in the same problem. Somewhere in there I flash the recovery.img as my boot image (sudo fastboot flash boot recovery.img) This made my phone repeatedly try to boot into recovery. I tried flashing new ViperXL boot.img as well as a couple others but none let me get into my os again. Now it is just a bootloop trying to start my phone up.
When I try flashing a .zip I get the error 'FAILED (remote: not allowed)'. Flashing recovery and boot images work though.
I've tried a lot and done a lot of searching but nothing can get me into recovery or even out of any sort of bootloop.
I'm using Ubuntu and my phone is S-On if that means anything.
Thanks!
Try restoring any backups of old roms from the recovery. Make sure Recovery is written properly in recovery partition. If this works fine , the appropriate boot.img shud be automatically flashed , i guess.
If u dont have a backup , try finding another one x user using a custom recovery, create a backup from his mobile and copy it to ur sd card by mounting it thru recovery and restore it.
If it doesnt work , wipe all the partitions - System , cache, boot and recovery.. then try flashing a Recovery and then a Boot.img and a rom.
I havent faced such a situation. Just my suggestions as no experts have responded.
Cheers if u have already sorted it out !!!

{help} Big problem with huawei

Hello to all.
i have this phone and i have BIG problem. i try to do stock recovery and flash new rom with this tool: http://forum.xda-developers.com/showthread.php?t=2597962
I did boot into custom recovery and cleared chache and data and format sistem, but i turn of the phone bcz i didnt have custom rom on sd card and when i turned on again phone i got stock recovery and i cant flash any custom rom onto device. Problem is next:
1. I drained battery and now i cant charge it. (That is main problem)
2. If it is posible to repair how can i do that and what stock rom to flash thro stock recovery. i tryed 1 rom and he didnt want to flash.
If there is someone who knows my problem and knowshow to fix it pls tell me... Ty in advanced

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