Nexus 7 woes.... - Nexus 7 Q&A, Help & Troubleshooting

Alright, so I've had my Nexus 7 for a couple of months now and I really am enjoying it. I flashed some roms, bought some apps and all the other good stuff. Anyway I flashed the MinCo ROM a couple of weeks ago and I realized I've been having trouble with rotation.
Playing racing games is impossible as the car turns right the whole time which lead me to believe that it was an accelerometer problem... But it didn't happen on the stock rom so I tried flashing a CM nightly I had that I knew worked.
After factory reset and flashing it and GAPPS I rebooted only to get an endless boot animation. I left it on all night thinking it was the dalvik being reconstructed to no avail.
Woke up this morning and I cannot even get into recovery mode! What is going on?
Sent from my EVO LTE using xda app-developers app

Flash back to stock through wugsfresh toolkit

I hopped on IRC and the fellas there helped me out. That is what I ended up doing anyway. I still don't know what caused all this trouble though....

Related

N7 wont boot after flashing Kernel - borderline bricked

Okay so I finally got my shiny new Nexus 32GB a couple days ago. Rooted it last night no problem. This morning I flashed Trinity Alpha4. worked great but my OC/governer/etc settings wouldn't stick. So I tried to flash the latest build of Faux Kernel. After flashing it got stuck in a boot loop. So I got back into Recovery and flashed Trinity back on again. Now it won't boot at all. After the splash screen the device completely locks up at a blank black screen. Went back to Recovery, wiped cache/dalvik, reflashed Trinity. After going through the "Android has been upgraded, optimizing apps" thing, it got stuck on "starting apps". After a couple min. I forced it to reboot, and again just gets stuck at a blank screen. I apparently completely forgot to do a Nandroid backup which I realized when I tried to restore it back lol.
Anywho, any thoughts on getting the thing to boot? Bricking it 2 days after I got it home is not my idea of a good time.
thebullfrog said:
Okay so I finally got my shiny new Nexus 32GB a couple days ago. Rooted it last night no problem. This morning I flashed Trinity Alpha4. worked great but my OC/governer/etc settings wouldn't stick. So I tried to flash the latest build of Faux Kernel. After flashing it got stuck in a boot loop. So I got back into Recovery and flashed Trinity back on again. Now it won't boot at all. After the splash screen the device completely locks up at a blank black screen. Went back to Recovery, wiped cache/dalvik, reflashed Trinity. After going through the "Android has been upgraded, optimizing apps" thing, it got stuck on "starting apps". After a couple min. I forced it to reboot, and again just gets stuck at a blank screen. I apparently completely forgot to do a Nandroid backup which I realized when I tried to restore it back lol.
Anywho, any thoughts on getting the thing to boot? Bricking it 2 days after I got it home is not my idea of a good time.
Click to expand...
Click to collapse
You might try and flash the stock kernel which should not allow any under/over clocking or under/over volting. Otherwise flash back to stock using the manual way here http://forum.xda-developers.com/showthread.php?t=1907796 or download the Nexus 7 toolkit and use it to do the same.
Try WugFresh's Nexus Root Toolkit. It has an option to go back to stock if you're soft-bricked.
Well I just did a factory restore/wipe (because Im SO looking forward to setting everything up again...) and it made zero difference. I'll try the stock kernel if someone could point me in the right direction to find a copy of it.
NVM found it. I'll give it a shot.
Ummmm okay then. I had my N7 turned off while looking for a solution to this fiasco. I picked it up so I could flash the stock kernel, and it had turned itself back on. Not only that, but it was fully booted up. Granted it's back to the initial setup after doing a factory restore, but there we go. It automagically fixed itself. Now to spend a couple hours putting everything back how it was. Yay.
Protip children: Always. Be. Nandroiding.

[Q] AT&T s4 refuses to go KitKat

Hey XDA, just a long time stalker who has finally given up trying to find his solution on already posted items (I think 10 hours of trail and error means I'm not gonna catch what I'm failing to see...)
When I first got my galaxy s4 I downloaded KangaBean and it was on 4.2.2 I believe. Today I decided I should upgrade to 4.4.2 since I've only been hearing good things about it, and I wanted the slight updates that came with it.
Well, I have a AT&T s4, sgh-i337 that was on CWM 6 when I tried updating to another ROM, the first one I tried was GOOGLE EDITION 4.4.2 BY DANVDH. Did a wipe, cache, dalvik, format system, flashed it, flashed loki doki, said no to re-root/root fix prompt that followed, then I came to the yellow triangle, I thought that was odd, believed I missed something.
So, I downloaded TWRP 2.5.0.2 like the thread suggested, tried again, no luck. Then I tried Unoffical Carbon KitKat, which just caused the "Samsung Custom" logo to stay on indefinitely (I let it sit for 40 minutes before giving up.) After 2 failed ROMs, I tried KangaKat, updated version of KangaBean, so it should be just dandy right? Narp, same luck. This one boots, then reboots into recovery.
At this point I considered myself to be stupid in some way so obvious that I would die before I noticed it. So, then I just flashed the stock firmware thats like 2.5 gb through odin, re-rooted and installed CWM 6.0.4.4 LOKI'd and tried to flash KangaKat, being confident it would work this time, again I got boot to the logo and then reboot into recovery.
At this point I attempted the other 2 ROMs again, multiple times.
After some sobbing, I re-did the stock firmware, tried again, failed again.
My sadness turned into rage, I just destroyed one of my micro sd to usb-s because it was being annoying and I was annoyed, I took a picture and got over it.
I tried a 3rd time with the re-flashing stock firmware and tried with twrp again, no cigar.
Now, after MANY hours and MANY false hopes... I shall be using my blackberry and hoping to return to android soon, if somebody can help me figure out what I'm missing. Many thanks ahead!
Did you do lokidoki after?
Sent from my SAMSUNG-SGH-I337 using XDA Premium 4 mobile app
Did you doa hard reboot clear the cache and davlik after it got stuck on the lock screen ? It seems odd that it would just not boot up at all. I was about to wonder if maybe it was the CM kernel bug that will keep it from booting past the initial screen but you tried aGE rom so...

Nexus 4 stuck on bootloader after unroot

So today my nexus 4 shut off at around 20 percent batter i didn't really think any of it because that happens often and i just reboot and its back on after charging it. This time however it was different it wouldn't boot it was just stuck on the paranoid android boot animation. I searched online and found out that clearing cache and data all that works so i tried it to no avail. I did the same this again but this time re flashed the rom and still nothing. I then pushed cm 11 into the nexus 4 flashed that rom and nothing. So then the last thing i though about was fully unrooting and going back stock with nexus root toolkit. I tried it and went through but then when good ol kitkat animation started it continued forever. Im out of options now and i don't even have custom recovery anymore what can i do.
I was running Paranoid Android build version 4.45 with hells core kernel.
EDIT---------------------------------------------------
I have clockwork mod recovery back up were do i go from here please help.
Please Help Thanks
skype:ApexDreamZ

G2 hardware issues, possibly related to flashing?

My G2 has been acting really funky lately, hanging on boot and not being able to "hold" recovery flashes. I'll start from the beginning of my little story.
On Saturday, I wanted to do a nandroid backup from TWRP (not sure which version, an older one but not terribly old). It failed several times. I went back into the OS (CM 12.1) and backed up all apps and app data to an OTG USB via Titanium Backup. This was successful. I tried to go back into TWRP a second time. Nothing. Recovery is not even there, I get a security error from what I believe is fastboot. I went back to CM and tried to re-flash TWRP. Now I get a security error on the LG screen. Nothing would boot, no recovery mode, I did have download mode although I had no PC with me so I didn't know this at the time. I was away last weekend so I had to go without a phone for a day... which was actually... kind of pleasent. Don't ask me why I carried two 32GB USBs and an OTG adapter on my keychain but no laptop, because I have no idea why I would do this, lol.
Came home Sunday afternoon and decided to nuke the whole phone with a TOT flash. Since I always wanted to try CloudyG2 since we all know AOSP-based ROMs don't do the camera justice, I went ahead and TOT flashed, re-rooted, re-AutoRec, etc. Everything worked wonderfully; I did a full wipe in TWRP, flashed in Cloudy, then the KK radio, then Xposed. Played around with things like XCam and a few Xposed modules. Everything was working awesome, so I did my restore in Titanium. Took a few hours, but Titanium says everything went fine (sans for a few CM apps which did not restore by design I guess). I checked out a few apps, all my data is there, wonderful. Titanium told me to restart so after poking around a bit, I went for the restart. Hang on boot. For several hours. Tried to go to recovery, fastboot security error. Seems it can't "hold" recovery or something else that I'm flashing?
Clearly I am doing something incorrect here with flashing and all that, but I can't figure out what. I'm not new to flashing and modding, and I've flashed regular CM updates and other goodies onto this G2 for quite a while with no issues. I'm going through the same steps I would normally with CM, and I've had plenty of success with that. Any ideas what I am doing wrong here?
Had same issue and know I hard bricked it trying to get it fixed ... Off to a different phone I guess .. Not sure why it wouldn't hold a recovery either after a few hours ... I gave up .. Good luck
Sent from my SCH-I535 using XDA Premium 4 mobile app

Nexus 7 not starting

Hi,
I recently rooted my nexus 7 and flashed TWRP recovery. One day I got into the recovery and started playing with it. By mistake, I erased my OS. I then came to know to know that i could fix it by flashing a custom ROM. I installed a custom rom successfully. I then wanted to go to stock. While flashing the stock OS, it got stuck in bootloop. It was too late so I thought to flash it the next day. On the next day, when i tried to switch it on, it did not start. I kept it overnight for charging but it was of no use. Then i went to the Asus service center, and i came to know that there was a motherboard problem. I did a little research on google and came to know that to earn money they told it was a motherboard problem. Many people had fixed it by unplugging the battery and replugging it back. I tried that, but it was of no use. I did not play with the bootloader. But now I think that it could be hard bricked.But I am not sure. So any idea whether it is hard bricked or really is the motherboard spoiled or what??
Thanks in advance

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