Bootlooping LS980, previously rooted, stock recovery. - G2 Q&A, Help & Troubleshooting

Ok, so i rooted my LS980 from day 1. A week later, I dropped my phone and cracked half my screen Regardless,the phone was working fine for a month or so. Then..... Along came the LS980ZVA update.... My phone kept telling me that the update was downloaded and ready to install. I kept ignoring it of course.
So one day, after work, I pull my phone out of my pocket and it begins to boot, stays alive for a minute or so(with zero signal and no touch input), and then begins to boot loop. I assume that my phone managed to update in my pocket, so I tired to boot to TWRP and restore a backup. This only sent my phone back into the bootloop
Next, I tried restoring my phone back to stock with the LG Flash tool. Long story short..... Half the time while in download mode, my phone will say it's rooted and the other half will say unrooted. And now im STUCK WITH STOCK RECOVERY!!!! I managed to get usb debugging enabled and can change my PC connection mode before it loops, but so far no rooting method works and I can't get any ADB commands to work.
Every time I issue an adb command it returns "error closed."
I can get into download mode, stock recovery, and can manage to get the phone to stay booted for a maximum of around two minutes or so...
What can i do!!!???!?!?!?!? My software still says i'm on on ZV7 firmware.... What can I do with stock recovery, no remaining nandroid backups, no adb, and a bootloop...? Maybe there's a solution utilizing linux...?
Any help would be sooooooooo appreciated!!!

Related

D800 stuck in Fastboot.

Hello all,
I attempted to flash lollipop on my G2 last night and for whatever reason, that didn't go well; after a supposed successful flash, it booted into fastboot and that's all I had access to.
So I researched a bit and thought I'd erase/flash a lollipop aboot.img and laf.img. now, however, I'm even worse off:
If I try to boot the phone with it plugged in it gets stuck at "LG", but if I boot it without it plugged in I get back to Fastboot. Fastboot will respond to commands and I can send files but it wont erase or flash, it just sits there waiting for device even though the download will respond with an "OKAY" and the phone's screen will show that it is receiving the flash /erase/boot command.
So, it's sitting here without completing the command and I'm a bit lost, any advice would be quite appreciated.
-Jacob
Any help would be greatly appreciated!

unable to enter recovery mode..stuck at lg logo

My wife killed her phone. She had romboons 30 installed with dorimanx 4.2 kernel and blastagators twrp 2.8.7.1
She then started installing other roms and now the phone is stuck at lg logo bootloop. I tried every button combination to get into recovery but notting
Tried download mode but it says rooted and freezes.
I am running linux lite 2.4 and am not that experienced at it.
My wife knows that its her own fault that the phone doesnt work anymore but is there a way to get it back to life again?
Thanks a lot for your help
Edit: Been trying to get into recovery mode for the past 3 hours. tried all combinations but notting. I only am able to get into a screen for hardware buttons. Download mode doesnt work either. phone is detected by linux when i hook it up.
I think the wife finally completely killed the poor phone It does not want to go into recovery
Well will mean that i will have to learn how to live without a phone cause she already took mine as replacement.
I have been able to get into recovery after several hours and installed new rom. So this can be closed and if you want even be deleted

Probably bricked LG G2 running SlimSaber

So basically this rom is awesome but it had only one problem. When I plugged my phone in the charger while it was turned off, it bootlooped until I restarted with the cable off. It was no big deal and nothing bad ever came out of it.
Yesterday my batter ran out while I was asleep and when I woke up it was already turned off. I, absentmindly, tried to turn it on, LG Logo, off again. Did it one more time, nothing happened, realized it's out of battery. Plugged in charger, try to turn it off/on, usual bootloop happens. Say ok and proceed with what I always did, phone gets past LG Logo, goes into SlimLP boot animation and for the first it has just stayed there. No restarts, just endless loading. Longest i Left it on to load was about 45 minutes. Never got back on.
Apart from that, I think that for some reason my recovery got uninstalled somehow, by itself, a few weeks ago. I only noticed this because before, when I wanted to get into recovery, I pressed the usual buttons and it went straight into TWRP. Now the same buttons take me to the "Factory reset screen". I know that everyone says to just go ahead and press power, but I am afraid, since I am not sure if TWRP is still functioning. This happened to me another time on the same phone, and when I confirmed the factory reset, it factory resetted.
My problem here is that I want to get my music and photos. I'm only able to enter that factory reset screen and download mode. Can I "flash" twrp safely from download mode? Should I use Flash Tool 2014 and Normal flash(which says it keeps the data) a stock g2 rom? Can I mount my phone to the computer in download mode to copy my files? I want the most risk-free approach.
Thanks in advance.
giorgos123 said:
So basically this rom is awesome but it had only one problem. When I plugged my phone in the charger while it was turned off, it bootlooped until I restarted with the cable off. It was no big deal and nothing bad ever came out of it.
Yesterday my batter ran out while I was asleep and when I woke up it was already turned off. I, absentmindly, tried to turn it on, LG Logo, off again. Did it one more time, nothing happened, realized it's out of battery. Plugged in charger, try to turn it off/on, usual bootloop happens. Say ok and proceed with what I always did, phone gets past LG Logo, goes into SlimLP boot animation and for the first it has just stayed there. No restarts, just endless loading. Longest i Left it on to load was about 45 minutes. Never got back on.
Apart from that, I think that for some reason my recovery got uninstalled somehow, by itself, a few weeks ago. I only noticed this because before, when I wanted to get into recovery, I pressed the usual buttons and it went straight into TWRP. Now the same buttons take me to the "Factory reset screen". I know that everyone says to just go ahead and press power, but I am afraid, since I am not sure if TWRP is still functioning. This happened to me another time on the same phone, and when I confirmed the factory reset, it factory resetted.
My problem here is that I want to get my music and photos. I'm only able to enter that factory reset screen and download mode. Can I "flash" twrp safely from download mode? Should I use Flash Tool 2014 and Normal flash(which says it keeps the data) a stock g2 rom? Can I mount my phone to the computer in download mode to copy my files? I want the most risk-free approach.
Thanks in advance.
Click to expand...
Click to collapse
Hi, first If you can enter download mode I think you can flash kdz (Kitkat) file to stock using Flash Tool 2014. But I had this problem once and the keep data flashing didn't work (stucked at 50%), I ended up flashed it with other option (erased all data).
2. You can try the "Factory reset" nice and easy.
I think you can't see files on the device unless you enter Twrp.
It's wise to backup your phone on the computer montly or so, thank you.
I went ahead and nuked my download mode using the SRK tools. Then got access to fastboot, through which I booted to twrp and then I could move my files. All's fine, flashed my ROM again and it's going better than ever.

Sm-g900f (uk) galaxy s5 - arrgghhhhh

Can anyone PLEASE help??
My partner opted to do a suggested update on her S5, but didn't notice the wifi was off. The phone seemed to have done the update, but shortly after it rebooted itself, then again, then again. The frequency of reboot got quicker and quicker and now it loops between the Galaxy S5 splash screen and the SAMSUNG logo, but doesn't go any further.
I managed to boot the phone into reset mode, cleared the cache and then did a factory reset, but that did nothing to prevent the boot loop.
I then downloaded Odin (ver 10.3.7) and what I believed to be the correct firmware (G900FXXS1CPLV_G900FVFR1CPJ1_G900FXXU1CPIW_HOME.tar.md5).
Having checked the battery was charged, I followed the instructions of connecting the phone via USB, loading the md5 in the AP, checking Auto Reboot and F-Set time in the options and clicking the Odin Start button. I had removed the battery, replaced it and then booted it into the update mode (Power, Home, Volume Down, then volume up) with the screen confirming I was in the right place (....do not unplug.... etc).
The file loaded, (green bar at top of the Odin window on my PC) and Odin reported success. I then disconnected the phone, booted in recovery mode, reset the cache and then did a clear data, factory reset.
The same symptoms prevail, STUCK IN BOOT LOOP!!!!
The only thing different is that if I plug it into the USB on my PC, after a while the phone tries to turn itself on and goes into either a boot loop or freezes on the Galaxy S5 Splash screen or the SAMSUNG Logo.
I am charging another battery (just in case that is in some way to blame) and will try again to replace the firmware, but could I be missing something, do I need to do anything with PIT (I thought this was all taken care of by Odin using the MD5 file) or is there some other test I can perform that will show if the phone is fried???
MANY THANKS for looking!
ur going correct, try to reflash it again through odin and dont disconnect phone until it boots into system, it is taking some good time, so just wait and dont do anything this time like clearing anything or restoring. i hope ull get success.
THANKS - but...
Thanks Rayzen, I will try the whole thing again, but I think there is something more to this than a firmware fault!
There and gone again
OK, so on the 4th attempt I got the phone to take the firmware using Odin, it reported success and the phone rebooted itself (several times) and eventually appeared to boot to a new factory reset.
I put in a SIM card and entered my email and google account details and left it charging over night. This morning when I tried to use it, the screen froze and then it rebooted itself. Hey presto, the phone is back to square one with a boot loop.
ANYONE (please) got any suggestions?
THANKS
No one??
same here, same symptoms, same feeling.
when flash gone right... i feel lucky.. but for half hour only, rebooted and angain in boot loop.
I cannot even boot in recovery. flashed TWRP. from 5 boots in recovery only 1 success.
When trying to wipe phone in TWRP - it hangs.
still trying to install some other (custom) rom. still no success.
hope never dies
same things happened here! now cant get samsung galaxy s5 to boot...............
Are you sure your using right firmware? as it took me a few versions before it booted last time this happened?
Could any please confirm what is the right firmware for samsung galaxy s5 900F
It took another 6 or 7 attempts, left it over night and was about to trash it when it booted.
I then received a 'software update available' message and tried installing it. First attempt put the phone back into boot loop so I reflashed it again using Odin.
That worked immediately the over the network software update installed and now phone is 100%
Very frustrating but I got there!
glad you fixed it! ive tried three different firmwares and still nothing.
trying this one atm
G900FXXU1ANE2_G900FEVR1AND1_G900FXXU1ANE2_HOME.tar
oh and how long do they take to boot when there are sitting at the samsung glowing screen?>
I'm in UK and used what (I had to guess) was the best firmware.
I'll let you know which version it was when I get home tonight.
BUT I had all the problems with a single version and it eventually came good.
I read somewhere that overwriting a different core (from specific providers) with generic firmware, could lead to a world of pain until it gets full replaced... not sure if that's a good description (or has any fact to it) but it seemed to be re-loading and re-loading and re........ for ages, finally cracked it.
well mines booted now!but getting constant errors about samsung push!
If it'still booted, you'very made progress!
Push issues are mentioned elsewhere and can (eventually be sorted) but if you have a booted phone you should be able to get an over the air software update installed from the service provider....?!

S5 (klte) bootloop.. cant access recovery.

So, I wanted to get some ideas here before I install the required things to try and sideload the stockrom, but here is the situation..
The wifes S5 on Wind mobile (yea, freedom..) started randomly rebooting a few weeks ago, and up to a couple days ago, become more frequent. I went ahead and booted into twrp and did a factory reset. The phone is completely stock, except for twrp. We do have a nandroid backup on the sd card.
Anyway, the reset seemed to have fixed the issue at first, but shortly the reboots started again, became more frequent as time went on, up until today; wife comes home with the phone stuck in a bootloop. Won't go past the Samsung Galaxy boot screen.
I was going to re-flash the stock rom I got off sammobile or whatever, but the phone wont boot into recovery now. TWRP blue backdrop shows, then phone reboots 5 seconds or so later, and bootloops.
I'm out of ideas. I'll try and do an ADB sideload.. or, Odin, maybe. Luckily the phone is able to get into Download mode.
Could this be hardware related? I have a feeling there's some sort of damage due to her dropping the phone quite often. Never cracked a screen though. Amazing.

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