Database Users

screen damage after update!!!!

my f320s was rooted and had twrp with lamhoang installed I decided to flash the 4.4 kitkat rom but ended up with a boot loop and no recovery I then used lf flash tool to flash stock,, now I have black lines down the right side of the screen as soon as device is switched on I even restored the twrp backup and tried a full wipe still no joy :crying:

yadabwoy said:
my f320s was rooted and had twrp with lamhoang installed I decided to flash the 4.4 kitkat rom but ended up with a boot loop and no recovery I then used lf flash tool to flash stock,, now I have black lines down the right side of the screen as soon as device is switched on I even restored the twrp backup and tried a full wipe still no joy :crying:
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I just tried to install the new furnace CM kernel and upon reboot the LG logo come up the it began to fade like my screen was going out. Then I reinstalled my old kernel and now I have the same problem. This shouldn't happen by just flashing software. Please HELP!!!

calcappone said:
I just tried to install the new furnace CM kernel and upon reboot the LG logo come up the it began to fade like my screen was going out. Then I reinstalled my old kernel and now I have the same problem. This shouldn't happen by just flashing software. Please HELP!!!
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Same thing happend to me when flashing furnace i just went back into recovery and factory reset and clean flashed another ROM all was good

You should change the title to "Screen Damage after updating Custom rom/kernel".
This is one of the risks in installing custom software and drivers is that it might get flaky. I would recommend flashing an older Kernel or one with an older screen driver as the new one doesn't play nice, apparently.
The Touchscreen graphics driver is a weird one. It generally can be updated... but not downgraded easily. The Nexus 7 2013 has a big issue with its screen and they've had to force a custom driver in it and lock it from being updated (since an Google Update installed a bad driver). It's been fixed now, but a bad problem. I doubt it is exactly the same since ours affected touch inputs where yours is affecting color, but pretty sure its the same chip that controls it.
Flashing an older Kernel will likely NOT fix your issues but it is worth a shot. You may have to wait until the developer puts out a patch (to update).

I think I softbricked, but only CM13 seems to fix on my N7. What did I do/how to fix

Guys,
I'm not even sure where to start with what I'm seeing, but maybe you can help me.
I have had Timur's ROM on my N7 2012 for a couple years. It's been crashing randomly, even though I have few things installed on it, and a good power supply. I took it out of my car and put it on an iPad 2 amp supply, and it still crashed a bunch so I knew I needed to wipe and reinstall. I also wanted to go from 4.2.2 to 5+, which I know takes away a lot of the good features I need (like power on/deep sleep).
I booted into TWRP and wiped my tablet, which appeared to softbrick it (I think I have the usage right from searching). I downloaded the Pure Nexus 6.0.1, CM13, and already had Autodroid ROMs to use. I tried to install Pure through ADB sideload, and got it installed. When I finished and tried to reboot, it said I had no OS. When I rebooted, I got the boot animation, and nothing else.
Long story short, I tried Autodroid and CM13, and using CM13 I got it back going. Unfortunately, every time I try to flash another ROM over it, it will no longer go past the boot screen. With CM13, it boots properly, but doesn't like the gapps pico I tried to install (error message when booted, keeps returning to the same pop up error).
I'm quite sure there's something I'm missing, but I don't know what it is.
Thanks!
Eric

Ok, before anyone goes nuclear on me, I think I better understand what happened. When I got ANYTHING to work, I stopped doing anything. As I understand, it wasn't functioning...it was just in a temporary mode of some sort.
After not being able to get it to work properly, I used this: http://forum.xda-developers.com/showthread.php?t=1781250 to try and restore the system. I followed all the directions, except for using the 5.1.1 version of the ROM, and used the corresponding file name for the zip file used.
After doing so, the bootloader won't go to TWRP, but goes to the pic as seen below. I did reboot the tablet, and after waiting quite a while, the tablet came on, but I don't understand what that picture means.
Thanks!
Eric

Ok...I realized that I lost root. I'm fixing it now. I had read before, but didn't understand what I saw.
Thanks,
Eric

Soft brick or hard brick?? /cache mount issues on N7 (2012 grouper, 32gb)

Hey all,
First post here on XDA and I'm hoping someone with more experience than me will be able to give me a hand! Until last week or so, I was running an up-to-date version of Lollipop (5.1.1), when my tablet started randomly freezing up on me, requiring "soft resets" to get it going again, or simply shutting off on me. Thinking it was software related, I tried wiping the cache with no success, so ended up doing a full factory reset. The issues *seemed* to clear up for a day or so, but came back, and so figuring it was Lollipop related, I wiped out the OS and installed CM12.1 (which was my first experience working with ADB and fastboot, and first time installing a non-stock ROM) with a TWRP recovery. A few days later, the freezing and shutting down issues began popping up again, with the shutdowns *usually* happening during sleep, but the freezing happening at anytime from initial "Google" logo to boot animation, to the middle of running an app. I had made a backup on TWRP when I got CM12.1 configured the way I wanted it, so I performed a soft reset when it froze on me, and booted into the bootloader. The tab kept freezing in the TWRP window before I could select a restore, so out of desperation I tried just doing a factory reset from within TWRP. Long story short, something must have happened during that reset, because it kept hanging on the boot screen. I thought I may have unknowingly messed something up, so I tried downloading and flashing a stock KitKat (4.4) ROM from Google's site, but kept encountering bootloader errors during the flashing and ended up only being able to boot to the bootloader screen (apparently got a faulty 4.3 bootloader in that ROM, which gave me a headache until I was able to get straightened out). I have been able to get a stock bootloader (4.23) up and running now, along with a stock recovery (going with Lollipop now, so stock for LMY47V) going, but that's it. I've tried flashing the stock lollipop image via shell script (I'm running a Fedora 23 machine), via individual commands, and via "fastboot update -w factory_image.zip" without success. ADB sideload still works via recovery, but I wasn't able to sideload the OTA packages for 5.1 either. The common errors that pop up seem to indicate an error (corruption? fragmentation?) on the cache partition, but I'm not a dev when it comes to Android, so I'm at a loss here... I keep getting "E: failed to mount /cache (Invalid argument)", and other errors associated with accessing/opening files further down the /cache tree. Would this error be more likely to be a hardware issue, or would it be a software/firmware issue? I've had similar errors before with USB drives, when they would start to bad and partitions begin failing, but have always been able to rebuild them and get my data back. If something like this is happening on my N7 and the cache partition has indeed become somehow corrupted and failed (but not physically....), is it possible at all to rebuild partitions on Android in a similar manner? I've scoured the web, but haven't been able to find anything that can help me out with something like that, so I figured my best bet before condemning the N7 to the junk drawer was to see if any of the pros around here had any words of wisdom that *might* get me back up and running. Thoughts and advice much appreciated!!
Thanks!
(Oh, I apologize for the lengthy post, but I wanted to be sure to provide enough background info..... Sorry for the lengthy read!!)

Honestly that sounds more like a hardware problem than a software problem.
During the early stages of booting, everything that happens is extremely deterministic - meaning that it should be completely repeatable in terms of the order & timing in which activities occur.
So, for it to behave erratically during early boot suggests that it is not software, but marginal hardware. If hardware is barely meeting logic levels or timing requirements, a small amount of random noise (which is always present) can cause a fault to occur at any time - and that sounds approximately like what you are observing.
Further, you replaced your ROM entirely and the problem persists - again suggesting that the problem is hardware, not software.
The most cost effective way of dealing with repair of a $200 tablet is - unfortunately - disposing of it and buying a replacement.
Sorry.

Thanks for the reply!! Shoot, that's what I was leaning towards too. What is the life expectancy of these tablets? I mean, I got 3 good years of use out of it, so I'm not going to complain, but it seems like they should have lasted longer... Would it be worthwhile to maybe grab a cracked screen N7 off eBay for parts and try to get my tab working with those parts maybe? I'm hoping the rumors are true about Google coming out with a new tab this fall, but I'd love to get mine working before then lol...

Help Please. Phone not working after flashing radio/vendor/bootloader.

Running CM13, flashed to the latest vendor image, radio, and bootloader to try to fix some problems and now my phone hangs at the "Google" screen on startup. I can get into recovery but can not decrypt storage so it's pretty much useless. All of my important data is safely backed up so I'm really only worried about getting the phone up and running again.

i think is bootloop broblem bro

I figured it out, I had used the wrong version bootloader or vendor, reverted back to the old ones and it started right up.

Dacull said:
I figured it out, I had used the wrong version bootloader or vendor, reverted back to the old ones and it started right up.
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It was almost certainly the vendor. That needs to match the Android version that corresponds with the Rom you are using. Since CM is no longer being updated it shouldn't be compatible with the latest vendor image.

can't update past LineageOS 14.1 20171013

Thanks to XDA, I've been running LineageOS 14.1 on my LEX727 for months now, updating to most nightly releases with no issues. However, when the phone rebooted after updating to the 10/20/17 nightly, it got stuck on the boot animation screen (green circle moving right to left on the arc) and would go no further. I rebooted into TWRP and flashed back to 10/13 which has been working fine. Same results after attempted updates to the 10/27 and 11/3 releases. I even tried a manual update from TWRP using USB OTG with the same result.
Any ideas of what's gone wrong here? Anything I can try? All I know to do at this point is wipe and install clean but I'd rather not if possible. Thanks!

fraxby79 said:
Thanks to XDA, I've been running LineageOS 14.1 on my LEX727 for months now, updating to most nightly releases with no issues. However, when the phone rebooted after updating to the 10/20/17 nightly, it got stuck on the boot animation screen (green circle moving right to left on the arc) and would go no further. I rebooted into TWRP and flashed back to 10/13 which has been working fine. Same results after attempted updates to the 10/27 and 11/3 releases. I even tried a manual update from TWRP using USB OTG with the same result.
Any ideas of what's gone wrong here? Anything I can try? All I know to do at this point is wipe and install clean but I'd rather not if possible. Thanks!
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I'd say do a clean install. If i have any issues with a rom booting i'll factory reset and install again. If i still have issues i'll just use another rom.

fraxby79 said:
Thanks to XDA, I've been running LineageOS 14.1 on my LEX727 for months now, updating to most nightly releases with no issues. However, when the phone rebooted after updating to the 10/20/17 nightly, it got stuck on the boot animation screen (green circle moving right to left on the arc) and would go no further. I rebooted into TWRP and flashed back to 10/13 which has been working fine. Same results after attempted updates to the 10/27 and 11/3 releases. I even tried a manual update from TWRP using USB OTG with the same result.
Any ideas of what's gone wrong here? Anything I can try? All I know to do at this point is wipe and install clean but I'd rather not if possible. Thanks!
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I am in the same situation. Have tried all combinations of wiping and resetting with all 3 of the latest nightlies and still cannot boot. I can successfully boot into a stock rom but, I'd rather not. I guess I will go back to the 10/13 nightly since it worked (mostly) before this debacle. Hopefully next week's update will solve this problem.

Thanks for your reply, islandlife98. I'm not super-confident at this ROM thing yet so backing up, wiping and reinstalling is something I'd undertake reluctantly. I was hoping this was a common situation with a simple fix that I just had been unable to find. Always prefer to actually solve a problem if possible rather than just wipe it out. (Although when it comes to tech, wiping it out is often the best or only solution. Almost always the quickest.)
JBealZy, thank you for letting me know you're in the same boat! After seeing no mention of this issue here, I assumed it was some weird glitch with my phone rather than a problem with the updates. If you've done a full wipe and re-install but still haven't been able to boot into any of the last three releases then I'm glad I hesitated. (That was a concern I'd had: that it might not work even after a clean install.) Think I'll stick with 10/13 for now and keep trying the new releases; easy enough to roll back if it fails now that I've figured it out.

Lmao same problem here with the 2017-11-11 and 2017-11-03 udpate. Not tested yet with 2017-10-27 or 2017-10-20 but that's my last choice because after 2017-10-13 update all links are removed. I do a clean install every time .. What other rom is better ?
Problem resolved .. i have wiped internal storage too and able to install the last version. I think i'm gonna use another ROM because i don't really want to reinstall all of my applications everytime i do an update. :/

Deediezi said:
Lmao same problem here with the 2017-11-11 and 2017-11-03 udpate. Not tested yet with 2017-10-27 or 2017-10-20 but that's my last choice because after 2017-10-13 update all links are removed. I do a clean install every time .. What other rom is better ?
Problem resolved .. i have wiped internal storage too and able to install the last version. I think i'm gonna use another ROM because i don't really want to reinstall all of my applications everytime i do an update. :/
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I am using Paranoid ( latest version) and everything works flawlessly.
Sent from my LEX727 using XDA Labs

Deediezi said:
Lmao same problem here with the 2017-11-11 and 2017-11-03 udpate. Not tested yet with 2017-10-27 or 2017-10-20 but that's my last choice because after 2017-10-13 update all links are removed. I do a clean install every time .. What other rom is better ?
Problem resolved .. i have wiped internal storage too and able to install the last version. I think i'm gonna use another ROM because i don't really want to reinstall all of my applications everytime i do an update. :/
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Another victim! So weird, I wonder what's going on there. None of the updates since my original post have worked so I've come to the conclusion that I'm going to have to do a clean install. Just need to find a time do it. Good to hear it worked for you.
LineageOS is the only ROM I've tried but since I have to wipe my phone anyway I may try some others. Paranoid Android looks interesting and Tsongming says it's working well.

fraxby79 said:
Another victim! So weird, I wonder what's going on there. None of the updates since my original post have worked so I've come to the conclusion that I'm going to have to do a clean install. Just need to find a time do it. Good to hear it worked for you.
LineageOS is the only ROM I've tried but since I have to wipe my phone anyway I may try some others. Paranoid Android looks interesting and Tsongming says it's working well.
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Yea i'm downloading Paranoïd right now for testing it .. Don't want a broken operating system on my phone haha

If anyone's still interested, I first tried flashing Lineage after wiping all but internal storage and still couldn't get past the boot animation. Then did a full factory-reset wipe including the internal storage, re-flashed, and it finally booted. The first OTA update since then came through today and went off without a hitch so all seems well for now.
I did take a look at Paranoid before going back to Lineage. One big reason I use a custom ROM is to get security updates quickly and LOS reports the security patch level in the settings; I couldn't find this info in PA. Also, I use a pattern to unlock my phone and there didn't appear to be a way use a larger grid than the default 3x3. On the plus side (sort of), PA includes the LeEco remote control app, which seems to be the only way to use the IR hardware on this phone, but it asks for more permissions than I want to give (which, of course, is not PA's fault). So admittedly I didn't really give it a full and fair trial but those few little issues sent me back to the (usually) reliable familiarity of LOS.

I received a new LEX722 yesterday. The TWRP for zl1 is working fine, but I cannot get lineagos working.
I deleted:
- dalvik,
- system,
- cache
- data
- and also the internal storage
after rebooting into twrp I enabled usb debugguung and pushed the lineageos and gapps images via adb push to the phone.
I installed lineageos and gapps nano, but after booting to system, I get stuck in a black screen looping to a dark grey luminated display (no graphics at all).

Heistergand said:
I received a new LEX722 yesterday. The TWRP for zl1 is working fine, but I cannot get lineagos working.
I deleted:
- dalvik,
- system,
- cache
- data
- and also the internal storage
after rebooting into twrp I enabled usb debugguung and pushed the lineageos and gapps images via adb push to the phone.
I installed lineageos and gapps nano, but after booting to system, I get stuck in a black screen looping to a dark grey luminated display (no graphics at all).
Click to expand...
Click to collapse
Sorry, can't help you with that since I have a LEX727 which is apparently quite different from the LEX722. Official LineageOS is only supported on the LEX720 and LEX727: [ https://wiki.lineageos.org/devices/zl1 ]. The LEX722 (Elite) has it's own section here on the LeEco Pro 3 forum so check that out and see what they've come up with.