OnePlus 9 T-Mobile Version stuck in Fast boot mode... - Android Q&A, Help & Troubleshooting

Hi all
First off I'm definitely a noob and it might be in the wrong place?
I'll start off by saying thanks for any support I my get.
Tryed to make a / i.e put in a TWR recovery
and got sent into a crash dump.
Now when I turn on the phone it stays in fast food Mode.
I've tried a multitude of tutorials to no avail.
The phone does have an unlocked bootloader done correctly, pretty sure. It's not rooted that was what I was trying to do. I'm running Ubuntu the latest version on a laptop and I'm seeking help to unbrick my poor new phone. I can perform tasks like getting log files and have even tried reflashing boot.images etc with success but not booting back into recovery where I could flash its oos, just end up in fast boot mode again.
I used bugjaeger at first with an OTG cable and another phone to flash custom recovery.
If somebody has a tutorial assuming that the partitions may be harshed on or needing something I'm unaware of or whatnot I'd be beyond appreciative...
Thank you for your time!

Related

[Q] ill pay money for help. brick

LG C800
Device will not enter fastboot.
Can't get into recovery mode.
Each time it boots it hard resets. There is an unofficial CWM Recovery Rom on this forum from chui101 which is for this exact phone, but I have as of yet not had any luck in getting the phone to take it.
So far i've tried Flash_image recovery.img (renamed chui's CWM recovery file to recovery.img)
Doesn't seem to matter what I do the phone starts(LG on screen), resets (the LG goes away for a sec then comes back), does a hard reset (a white box with an arrow pointing out of it an to a little android), again resets the phone one last time for a "normal" boot.
I've tried a few different things to try and flash anything overtop of the stock recovery but nothing works. It seems like very early in the bootstrap is a command to do a hard reset and anything that gets put in AFTER that command is ignored. (And the phone hard resets and anything else it was supposed to do is gone.)
Device is rooted with SuperSU.
Phone is fully functional except that it hard resets every boot, and if its plugged in when off it doesn't go to a charging screen, it starts the phone 100% up.
Adb devices CAN see the phone.
I CAN get into Download (sometimes called Emergency) mode.
"reboot recovery" doesn't do anything but reboot the phone as described above.
I can't afford a new phone guys, so I'm over a barrel at this point.
i'll pay whoever provides meaningful help in getting this thing fixed.
You should start fresh. So, flash the stock rom FTF of your phone, then the phone should boot up normally. Then you could either root it and install a CUSTOM recovery, or flash a pre-rooted custom kernel that already contains a recovery. From there, just flash the custom rom you want
Just press thanks if I helped, no need for money
stock rom FTF?
From the factory?
I'd love to do that. But am bewildered as to how when every guide I've found says use fastboot -- which doesn't work on my device. And every guide without fastboot thus far has not worked. I've been reading 10 hrs a day for the last 3 days looking for a solution to this.
If there was a way to completely wipe the entire phone and then install stock rom I'd be glad to do it.... I have found no such guide... only those to replace recovery. (not a 100% clearing as if it came right off the line with no software yet installed)
Additional information:
mv /system/recovery-from-boot.p /system/recovery-from-boot.p-bak
Spits out a "No such file or directory" error
I don't know about you, but for Xperia Devices there is a PC software called Flashtool to flash stock roms and custom kernels and stuff from the PC. There should also be a software like that for your device. You just download the stock FTF for your phone (just type in google "download stock FTF for LG C800") and flash it in Flashmode that should be working
One more thing, this issue is not called bricked
press thanks if i helped
There is an LG tool but it says current software is up to date.
Other option is run recovery, which just reboots the phone as is.
No, this software I am talking about is not made by LG or Sony in my case. It should be a general tool for all LG devices. it should root, flash, install busybox, etc......
blakstar said:
No, this software I am talking about is not made by LG or Sony in my case. It should be a general tool for all LG devices. it should root, flash, install busybox, etc......
Click to expand...
Click to collapse
LG MOBILE SUPPORT TOOL ?
Thats the one that so far doesn't work.
the one named:
KDZ_FW_UPD_EN ?
He doesn't appear to support GSM phones. Plus I hit "Read info from phone" button... it gets almost everything -- correctly -- then crashes.
IT wants kdz files... looking for them now... chui has a dl link for the stock recovery but even though its a few mb it looks like only a zipped folder hierarchy with no files.
Slightly mis-read. still not finding any "generic" flashing software
trying octopus now....
crashed....
run as admin..... ah... you need their hardware which is hundreds of dollars...
Flash image gui, phone is not supported.
ok, a couple cyanogen dev's have both told me i'm screwed. Imma try for the rest of today and then just never turn it off again.
ok, paying lg to fix it... anybody guess what that will cost?
Try flashing CyanogenMod on your phone as no stock firmware is avaiable currently for your phone cyanogenmod shall fix the problem and you should boot normally (first flash CWM)
http://forum.xda-developers.com/showthread.php?t=1752704 - flashing cwm recovery (do it!)
Flashing cyanogenmod (requires usb debugging on)
First to put the cyanogenmod rom in the sdcard use adb push - http://forum.xda-developers.com/showthread.php?t=1667929
Page 1 (Pre Requisites - http://droidnoob.com/update-lg-c800-to-android-4-0-4-ics-via-cm9.html
Page 2(The actual flashing part :victory - http://droidnoob.com/update-lg-c800-to-android-4-0-4-ics-via-cm9.html/2
Probably will fix the problem....
hi techmasta,
I'd love to flash cyanogenmod, but the phone never enters fastboot to flash anything. The first link you posted says to use fastboot. I can't do that. The phone doesn't goto fastboot, it runs its recovery first.
EDIT: if there is a way to force it while the phone is in download mode that could probably work.
secondly, I've spend more than 40 hours on this issue, mostly reading forums but still a great deal on google.
I'm pretty unhappy with google as neither of those droidnoob forums ever come up. And believe me, there isn't much out there referring to the lg c800 so they should have!

[Q] Please please help this noob out!

As previously stated I am a complete noob when it comes to flashing android devices.
Here is the problem I am faced with: I recently rooted, and unlocked the bootloader on my atrix hd (ATT)
Since then I tried installing cm10.1 multiple times on the secondary "Rom slots" within the bootloader, without any success. So I finally decided to go for it and install cm10.1 in the "stock rom" slot, Prior to doing this I did a back-up using Rom manager. Aand now I seemingly can't even boot into recovery mode, every time I restart my device it simply goes to the cyanogenmod blue ring thingy and gets stuck! (I have left it for 15-20 mins thinking it might be some kind of installation process..) But apparently it's not and i've broken my smartphone lol. Anyway i'd really appreciate some help fixing this problem, a step-by step guide would probably work best..!!! I have both windows 8 and Ubuntu installed on my pc, just saying..Don't know if it's relevant information and may simplify fixing my problem...Thanks in advance guys and girls
i've even tried holding down all three physical buttons and it simply takes me back to the same screen!!!
you could try something like this:
http://forum.xda-developers.com/showthread.php?t=2434726
.. and you are sure, that you can not enter the recovery menu??
official motorola guide, how to enter recovery menu:
https://motorola-global-portal.custhelp.com/app/answers/detail/a_id/60620/action/auth
.. adb could be your last possibility, if everything else fails, google it, you'll find many answer

I'm Not Even Sure What This Is SONY XPERIA Z2 TABLET -VERIZON- POSSIBLE BRICK?

Hey guys, please forgive me for any bad etiquette or lack of information (any information I can provide is available upon request if I leave anything out). I am new to forums in general and especially to XDA, which seems like a good place to get help.
I recently purchased a Sony Xperia Z2 Tablet from Craigslist under the assumption it was a fully unlocked tablet not associated to a carrier. Turns out it was a Verizon Z2 tablet. I dislike Verizon with a firey passion and without getting into too many details, I'm fairly certain they won't help me because a) this tablet wasn't purchased through them as a customer and b) Verizon and I have bad history (unauthorized account modification, shady charges, etc.)
So I thought I'd do my best to make the tablet mine since the asshole who sold it to me has ceased all contact and I don't know how to get a hold of him anymore. No receipt and a data-less tablet.
Anyway, I successfully rooted the tablet and began installing apps that I installed for my G4 when I rooted it (SuperSU, Adaway, Greenify, etc.)
Things were going well but I realised I wanted anything that had to do with Verizon removed from the tablet so I was going to flash Cyanogenmod onto it with a guide I found online. Now rooting and installing custom recoveries was familiar territory and I did these flawlessly. It had TWRP and I made a backup of the system -no Nandroid, sadly-and I began the flashing process. The process said it completed without issue and I went to reboot my device. Enter my current situation:
The device, when I attempted to turn it on, all it did was vibrate constantly until I let go of the power button. Attempting to enter recovery mode (green LED, power + vol down) it showed me, instead of TWRP, a very basic recovery mode with basic options. "Continue booting up", "enter safe mode", "system recovery", and "power down". I tried entering safe mode and it just shut back down, I tried doing a system recovery and it shut down. The only time I ever see the "SONY" logo is if I'm entering this mode. I can enter what I assume is "fastboot mode" (power + vol up and plugging the device into a PC). Nothing on the screen but the LED is blue. I am trying to find guides to restore it if I can and it all looks promising but the only things I know how to really do are root and install custom recovery. I know there are PC tools I can use to send commands to it while it's in fastboot, or send commands in general I just don't know where to begin.
Does anyone know how to fix this? I know it was from Verizon, which sucks, and I know the problem most likely occurred with the attempted flashing of Cyanogenmod. I think I read somewhere I might have done something regarding mismatching kernal numbers. I couldn't find a way to unlock the bootloader so I assume that had something to do with it too.
If someone could give me a guide to restore it to at least its stock ROM where I can begin rooting and installing a custom recovery again, that would be great. Even better would be just flashing a ROM on there that doesn't need Verizon or being able to take it to a stage where it's unlocked and the only evidence it was ever with a carrier is the Verizon logo on the back. I'd really hate to think I wasted money on this and now I'm at a dead end because of a mistake I made. This was supposed to be a gift for my mom on her birthday which is coming up soon. So if anyone knows anything, or has a guide where we can at least get the thing bootable again and I'll just try and deal with a rooted locked device, that would be great.
Thanks for considerations,
Marmalade_Shaws
I have spent time on that screen too.
2 things
1. .. If you installed dual recovery, there is an up, down sequence to select the recovery.
2. Find a downgrade guide, use flashtool to flash. Ft back to stock.
Also you need to know what hardware you are running..511, 561.. And use the proper version.
There are some options with the flashtool and prf maker that can remove branding and vendor stuff. I have not tried those options.
Ez-go said:
I have spent time on that screen too.
2 things
1. .. If you installed dual recovery, there is an up, down sequence to select the recovery.
2. Find a downgrade guide, use flashtool to flash. Ft back to stock.
Also you need to know what hardware you are running..511, 561.. And use the proper version.
There are some options with the flashtool and prf maker that can remove branding and vendor stuff. I have not tried those options.
Click to expand...
Click to collapse
Sorry if this is late... But where can I find the stock? I've searched everywhere and I would need to do it from a flash tool on my PC? I could use all the help I can get.
I just had a very similar experience to the OP, seemingly identical in every way, and am curious if anyone has a solution.
ADB won't function at all, and the bootloader has blocked any sort of flashing via fastboot. Can't boot into TWRP, it goes into a very minimal "recovery," which I imagine is the stock tool, and the Factory Restore option there does absolutely nothing. Flashtool would work great if ADB / Flashmode was at all functional (device blinks and vibrates in a fashion typical of something bricked, and no connection is picked up).
Verizon Z2 Tablets are 561s.
This thing dead or is there some way to push back onto it?

Need help with a lg tribute that is stuck in bootloop after a factory reset.

I have been reading everything I can find and tried to figure it out myself but the more I read the more questions I have and the less sure I am about trying any of the things I have read.
My problem is with an lg tribute from the company called Textnow. My friend ordered the phone from them and was having some issue she decided to try to fix by doing a factory reset which caused it to be stuck on the Lg boot logo. I tried booting to recovery to fix it. The recovery was TWRP. I was under the impression that Twrp was a custom recovery program that was installed after unlocking boot loader. Best I can tell is the phone was already rooted by the company. Does this sound right?
I messed with it for while but couldn't get anywhere with it because I haven't any knowledge of rooting except what I read . I noticed it kept saying something about simulating actions and figured that out but now after trying to back up and restore and poking around that it says there is no os , I was hoping someone could help me figure out where to go from here as it isn't my phone and I would hate to damage it although my friend keeps telling me to just try whatever no big loss because she can't use it like it is so.
I am not sure what the phone had for firmware because I cant get it on. I only know that it had twrp 2.8.5.0 as recover not the usual android. I can access the phone internal and external through twrp and though pc and adb. I made sure to get drivers updated. I tried to flash the stock rom from its forum but it failed,. any info would be mush appreciated

Installing Custom ROM Lots of issues and nothing really works anymore.

Hello XDA Forum,
so in order to get rid of all the garbage Samsung pre-installed stuff I wanted to install a custom ROM like LineageOS. To do this (since I'm a complete layman) I used this guide for the most part: https://forum.xda-developers.com/t/...fn-ds-lineageos-19-too.4431737/#post-86951249
First Issue arrived at point 12, when despite "swiping to allow writing" TWRP would not allow me to copy filed onto the phone. So I read somewhere else to reinstall TWRP, which I then did after a lot of back and forth. Sadly when leaving TWRP it seems almost impossible to get back into TWRP, the phone just loops around a recovery screen telling me that bootloader is unlocked. It's also no longer being recognized by ADB and Fastboot, or Odin for that matter. And even reinstalling the USB Driver did not help.
So I read somewhere to reblock the bootloading and then enabling it again. So I did, and now I cannot unblock it anymore either. It just sits in the "Downloading Mode" and when I hold Volume Down and Power it goes into the Recovery Screen and then IMMEDIATELY back into Downloading. I can't even turn it off because it's basically stuck in Downloading.
If I could make it work again and findable by ADB I might be able to just use a different Version of TWRP (not the one advertised in the thread linked above) and maybe try again. But then I also don't know why it was so hard to get into TWRP to begin with. Or is there now no escape from this loop and the phone is essentially bricked?
{Mod edit: Post adjusted to the language required by the forum rules! - Oswald Boelcke}
so you can not flash stock?

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