Unable to install ROMS or boot, suspect faulty internal memory - General Questions and Answers

Hi.
First post in the forum.
Just bought myself a brand new Lenovo A830, seems pretty new as there are very few custom roms out there.
It also doesn't help that this is a Chinese model and I can't seem to find support for it anywhere.
I got it delivered from etotalk.com with etotalk's own rom installed, and immediately started searching for custom roms.
Reason for this was faulty English, force close etotalk tools and Chinese info/submenues.
After trying out a few different roms, I've somehow gotten to a point where the internal memory is unavailable.
I think that one of the roms I installed switched the internal and the external memories, because I noticed a bunch of system
folders on the external sd. After that I wiped and formatted everything I could find from CWM 6.0.3.0, and after this, I'm unable
to install or mount anything. I hope this is possible to resolve without involving the external sd into the puzzle, because really, it seems to me
that I've managed to screw up the internal partitions.
Now, when I startup CWM, I instantly get the following messages:
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last_log
E:Can't open /cache/recovery/last_log
Click to expand...
Click to collapse
I tried to recreate the partition table, using this tutorial:
http://forum.xda-developers.com/showthread.php?t=1158377
I was able to complete the tutorial, but it was not successful. Meaning I was able to create all of the partitions, but still have issues.
I've tried installing these roms:
http://www.needrom.com/mobile/lenovo-a830-5/
(worked installing before, got it up and running, then started messing around again)
and this
http://www.needrom.com/mobile/lenovo-a820-12/
(was also able to install, but showed some nasty "washout" stripes on the screen, which Is why I started messing around again)
and this
http://www.needrom.com/mobile/lenovo-a830/
(was not able to install this one, didn't try it before the mounting issues started.
When I try to mount /sdcard storage now, I get "Error mounting /sdcard!"
Same for /sd-ext.
Also, the internal sd card shows up with "no media" now when mounting usb to PC.
So, the only thing I'm able to do on this phone now is to enter CWMR.
I've searched for days now on several forums, I'm desperate. Please help me!!

Related

[Q] problem with my sd card

hey guys im stuck on recovery mode and i wiped everything and my phone can't read my memory card does any one know how to fix this, I NEED HELP PLZ it gives me an error message, E:Can't mount /dev/block/mmcblc0 (or /dev/block/mmcblk0p1) (no suck file or directory) E:can't mount /sdcard.
same issue
i assume this problem relates to the SGS I9000M can we get this moved?
Eject your sdcard while the phone is on, replace it, and try again. Worked for me when I got the error on my MT3GS.

[Q] E: Can't mount sdcard!!!

*sigh!* Ok. I wanted to install Jelly Bean and so headed over to this thread http://forum.xda-developers.com/showthread.php?t=1583427. Everything was going great until my screen hung at what I guess is the startup page. I rebooted back to recovery but I'm getting things like E: Can't mount sd card E:Can't mount cache/recovery/log E:Can't open cache/recovery/log etc. I have no idea where to go from here and after HOURS of searching the net and forums, I'm about to go bald. Please help. Clearly I'm what you call a noob.
Oh yeah, I have an HTC One S. No external sd card
Try and do a re root

[Q] CWM6.0.5.0:Error mounting /data while making a backup onSGS2 in bootloop withCM11

Okay, so this happened out of nowhere. My phone was perfectly fine and when I wanted to check for new messages/notifications etc he couldn't turn on. So I powered him up and he was stuck in a bootloop. I said, okay, it's not the first time. I immediately went to backup and restore option to make backup of whole system because data of some apps is valuable to me. I selected the option to backup it on external memory card. It backed up the boot image, recovery image, system partition and when it comes to data partition it restarts or show err on /data partition. I tried changing the default file formats, without success.
So, is there a way to make backup of that partition(maybe installing another cwm?) and how?
Additional info: I tried making backups on both partitions and nothing. On internal SD I have ~3300mb free and on external SD I have ~2500mb free. The reason I am using CWM c6.0.5.0 is that none of the earlier versions don't support Kit Kat based systems. Another thing is that if I select 'mount USB device' option I can see both, the internal and the external SD card on my pc. Perhaps, there is a way to recover /data from that option?
Also, when I enter the CWM at the bottom of the screen it says this:
CWM-based Recovery v6.0.5.0
Swipe up/down to change selections.
Swipe to the right for enter.
Swipe to the left for back.
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache recovery/last_log
E:Can't open /cache/recovery/last_log
E:Can't mount /cache/recovery/last_install
E:Can't open /cache/recovery/last_install
One more question: Can I install older version of CWM, the one that I am sure it is working(because I was using it, that's how I know)?
Updating this: motherboard was dead. So, if you are getting these errors your mobo is probably dead, specifically emmc chip. It can be soldered out and resoldered if you find replacement but its not an easy and cheap procedure.

[Completed] Odd problems trying to root HTC One (M7)

So, I have a Sprint HTC One (M7) that I tried to root following this guide:
http://www.xda-developers.com/how-to-root-the-htc-one-m7-and-install-recovery-xda-developer-tv/
Custom Recovery was flashed successfully (I tried both TWRP 2.5 and CWM 6.0.4.6), and I immediately got the following errors:
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last _log
E:Can't open /cache/recovery/last_log
E:Can't mount /cache/recovery/last_install
E:Can't open /cache/recovery/last_install
I can't access /cache, in short. So, I tried to find my SD card, but my phone doesn't have a slot for one, and I couldn't figure out how to write to the virtual one inside the phone, so I passed SuperSU-v2.46.zip through sideload, and it failed when it couldn't access cache. I was then rather foolish, and tried to just flash a ROM from Android Revolution HD, found on this thread:
http://forum.xda-developers.com/showthread.php?t=2265618 (I used this particular ROM:Android_Revolution_HD-One_92.0_4a9d05.zip).
Again, I passed it using sideload because I don't have an SD card. The install formatted my partitions, then at 30% (when it began to copy files), it failed. Thus, I was left with an empty phone, but an unlocked bootloader. I tried a few more things, to no avail.
I think if I could figure out how to put something in the virtual SD inside, that might get me there, since I'm guessing that it's formatting over the location of the installer/image. Also, I found that if I use the "Wipe /cache" from CWM, I don't get those errors, but then I can't reboot into the recovery again, so I'm guessing that it's saving it in the /cache partition. I use the command "fastboot flash recovery CWM_image.img" to put my recovery in there.
Anyway, any ideas or help would be nice. I know enough to be dangerous, but clearly not enough to get myself out of this mess. Any help would be appreciated.
Hi there
You'd be best served asking for help from the experts who own your device, here
So you came at XDA-Developers to find help? (Beginners Thread)
Good luck

[Completed] How to protect a portion of internal memory during OS install?

So, I have a Sprint HTC One (M7) that I tried to root following this guide:
http://www.xda-developers.com/how-to...-developer-tv/
Custom Recovery was flashed successfully (I tried both TWRP 2.5 and CWM 6.0.4.6), and I immediately got the following errors:
E:Can't mount /cache/recovery/command
E:Can't mount /cache/recovery/log
E:Can't open /cache/recovery/log
E:Can't mount /cache/recovery/last _log
E:Can't open /cache/recovery/last_log
E:Can't mount /cache/recovery/last_install
E:Can't open /cache/recovery/last_install
I can't access /cache, in short. So, I tried to find my SD card, but my phone doesn't have a slot for one, and I couldn't figure out how to write to the virtual one inside the phone, so I selected "Install zip" option in CWM and passed SuperSU-v2.46.zip through sideload, and it failed when it couldn't access cache. I was then rather foolish, and tried to just flash a ROM from Android Revolution HD, found on this thread:
http://forum.xda-developers.com/show....php?t=2265618 (I used this particular ROM:Android_Revolution_HD-One_92.0_4a9d05.zip).
Again, I passed it using sideload because I don't have an SD card. The install formatted my partitions, then at 30% (when it began to copy files), it failed. Thus, I was left with an empty phone, but an unlocked bootloader. I tried a few more things, to no avail.
I think if I could figure out how to put something in the virtual SD inside, or somehow protect the install files from being overwritten during the install, that might get me there, since I'm guessing that it's formatting over the location of the installer/image. Also, I found that if I use the "Wipe /cache" from CWM, I don't get those access cache errors, but then I can't reboot into the recovery without flashing it again, so I'm guessing that it's saving it in the /cache partition. I use the command "fastboot flash recovery CWM_image.img" to put my recovery in there, which may be a part of the problem.
Anyway, any ideas or help would be nice. I know enough to be dangerous, but clearly not enough to get myself out of this mess. Any help would be appreciated, and at this point, it would just be nice to have any OS on my phone. All HTC recovery software fails because they require a locked bootloader, but my computer won't detect a phone with no OS and a locked bootloader...
Duplicate.
http://forum.xda-developers.com/general/xda-assist/odd-problems-trying-to-root-htc-one-m7-t3164965

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