[Q] how to root ls970 - LG Optimus G (International)

Sprint Optimus g ls970 ZV9 from. Trouble rooting. Seems to be a driver issue, I have tried, superoneclick, GAIO, Bin4ry, currentroot ZV9 (and english version). Everything runs great and they say the root was successfull, but my phone never restarts or does anything at all. Manual restart and no super user. I downloaded the drivers from lg's site they install successfully. I have used USBDeview to erase any old drivers. And loading the driver from GAIO runs and installs successfully. I have not done any updates on the phone. Factory reset multiple times. Used 2 different PC's win 7 -64 bit. No luck. Any info would be
appreciated, Thank you.
I updated prl, profile, firmware, and lg software.
Now when I try to root using the currentroot method zv9 (and the english version) it seems to work, my phone reboots only 1 time when it states it will reboot 2 times, and the shell tells me that root was successful, yet no super user....
Android 4.04
kernel 3.0.21
build ZV9. IMM76L
software LS970ZV9

Related

Bricked Samsung Galaxy note 8 i467

hello All, would appreciate any help you could provide. I rooted this tablet, the samsung galaxy note 8 i467 att, using the chinese app 360 super root. the only problem: it installs a chinese super user. it also required all permissions; these two facts made me nervous about leaving the app installed. unfortunately, removing the app also removed root. I could not figure out how to uninstall the app, and leave root, so I could install chainfires supersu; all attempts failed. Chainfire's supersu would not install the initially required updates.
I tried freezing the chinese super user app hoping that I cound install the english supersu after the chinese one was frozen. This did not work; all super user required functions froze, so chainfire's would not install. Then I tried to unfreeze it, but due to a glitch in the app I was using to freeze programs, I was unable to. Now I was stuck with a tablet with a frozen superuser. No root access.
At this point, I decided to go back to the initial plan. Downgrade using Odin (go from firmware 4.4.2 down to 4.1.2 from sammobile) and use a root method available for that firmware, in english. This process failed in odin, leaving me with a brick. Currently, the tablet powers on, and it says something like " a firmware not authorized by at&t has been detected". nothing else. Stock recovery/Odin mode is available via hardware keys, but all attempts to flash (4.1.2) from this screen via odin have failed for me. I have also tried kies emergency flash mode. The tablet is not recognized in kies. it hangs at the intial connection phase, and connection time out.
Please advise if there is any way I can bring this tablet back to life, and achieve root. Thank you in advance for your assistance.
kevmagnus said:
hello All, would appreciate any help you could provide. I rooted this tablet, the samsung galaxy note 8 i467 att, using the chinese app 360 super root. the only problem: it installs a chinese super user. it also required all permissions; these two facts made me nervous about leaving the app installed. unfortunately, removing the app also removed root. I could not figure out how to uninstall the app, and leave root, so I could install chainfires supersu; all attempts failed. Chainfire's supersu would not install the initially required updates.
I tried freezing the chinese super user app hoping that I cound install the english supersu after the chinese one was frozen. This did not work; all super user required functions froze, so chainfire's would not install. Then I tried to unfreeze it, but due to a glitch in the app I was using to freeze programs, I was unable to. Now I was stuck with a tablet with a frozen superuser. No root access.
At this point, I decided to go back to the initial plan. Downgrade using Odin (go from firmware 4.4.2 down to 4.1.2 from sammobile) and use a root method available for that firmware, in english. This process failed in odin, leaving me with a brick. Currently, the tablet powers on, and it says something like " a firmware not authorized by at&t has been detected". nothing else. Stock recovery/Odin mode is available via hardware keys, but all attempts to flash (4.1.2) from this screen via odin have failed for me. I have also tried kies emergency flash mode. The tablet is not recognized in kies. it hangs at the intial connection phase, and connection time out.
Please advise if there is any way I can bring this tablet back to life, and achieve root. Thank you in advance for your assistance.
Click to expand...
Click to collapse
Downlaod the ROM from sammobile that is for your note. Do not use the open firmware.
I didnt think you could downgrade 4.1.2 if you took the update?
I like you a problem~~~
http://forum.xda-developers.com/galaxy-note-8-0/help/rec-i467-4-4-2-ni2-stock-recovery-t3201261
What was the error code in Odin?
It is my understanding that, starting with 4.3 and higher, the bootloader cannot be downgraded and attempts to downgrade the bootloader may soft-brick the tablet.
I think the only way to quickly revive the tablet may be to flash a custom recovery and custom ROM if possible.
Also, try Samsung's SmartSwitch ( kies replacement) to see if that can recovery the tablet.

Twrp not working for lg g3 d725, at&t variant

I have tried unsuccessfully several times to install TWRP on this phone (d725 Vigor) and it just doesn't seem to work. The first time I attempted it I managed to hard brick it. This time I soft bricked and had to downgrade to kitkat to get it working (via firmware update). It's working ok now, but since it's old I won't be seeing any lollipop, marshmallow...etc updates. Any ideas on what I'm doing wrong? I've tried several methods including bump & original twrp: via flashify, the official twrp app and twrp manager all of which gave me a ###udc start() (forgot the exact number, I believe 760). Tried adb commands which says there's no room left on the device or something. Should I just give and live with it? (In lieu of the model phone and my lack of success, I mean)

VK810 Root and ROM Successful

I felt compelled to register here and post my success on getting LineageOS installed on my Verizon VK810 4G Altev LG G Pad tablet. It would not have been possible without this forum and the users who contribute, both with information and with uploads. I initially tried rooting with KingRoot and the OTA updated OS I had from Verizon but the app said there were 63 requests for rooting my device. Forget that idea. After also trying iRoot which wasn't working, I used the LG Flash Tool to downgrade to VK81035A and then was successfully able to root that. SuperSu definitely helped with the process. My guess is, even though both were Android 5.0.2, mine had OTA patches that I guess caused issues for rooting. Installing TWRP was a hassle though. None of the v500 TWRP images worked for me and many of the custom TWRP versions that I found on here did not work for me. You would not imagine the number of times I thought I bricked my device because I kept getting "Secure Booting Error! Cause: boot certification verify" errors. However, what did work for me was, using Platform-tools and VK810_twrp_2.7.0.1.zip for TWRP. For some reason, the other versions posted here did not work for me. It did take me a while to figure out how to get into TWRP because I kept using the Power-VolUp key combinations and it kept bringing me to what looked like LG's recovery menu. I didn't realize that the screen is actually fake and you have to click "Factory Reset/Wipe" on there to get into TWRP. It actually took me a long time to figure that out. With TWRP installed, I searched for ROMs that I could use that were newer than Android 5.0.2 and ended up downloading LineageOS as it came up for the VK810 and since VS500 ROMs weren't allowed to be installed. Now to be fair, the LineageOS Rom that I used (lineage-14.1-20171228_233442-UNOFFICIAL-vk810.zip) is pretty glitchy. The display likes to blink a lot, many apps crash on it and there is no cellular data working for me, but I assume that will possibly be fixed in the future and at least now, I can customize more than I could on stock. On first install, I also lost my root and forgot to install the GApps package from the Lineage website. Anyway, hope this helps at least one person here. Nothing was one-click for me, but I did learn a lot about the process of rooting and flashing, and now better than to automatically allow OTA updates. I do hope LineageOS or another ROM keeps updating for the VK810 because this tablet does not seem that popular and I would like to see Oreo. Thank you everyone for your help!
XDAnonymous said:
I felt compelled to register here and post my success on getting LineageOS installed on my Verizon VK810 4G Altev LG G Pad tablet. It would not have been possible without this forum and the users who contribute, both with information and with uploads. I initially tried rooting with KingRoot and the OTA updated OS I had from Verizon but the app said there were 63 requests for rooting my device. Forget that idea. After also trying iRoot which wasn't working, I used the LG Flash Tool to downgrade to VK81035A and then was successfully able to root that. SuperSu definitely helped with the process. My guess is, even though both were Android 5.0.2, mine had OTA patches that I guess caused issues for rooting. Installing TWRP was a hassle though. None of the v500 TWRP images worked for me and many of the custom TWRP versions that I found on here did not work for me. You would not imagine the number of times I thought I bricked my device because I kept getting "Secure Booting Error! Cause: boot certification verify" errors. However, what did work for me was, using Platform-tools and VK810_twrp_2.7.0.1.zip for TWRP. For some reason, the other versions posted here did not work for me. It did take me a while to figure out how to get into TWRP because I kept using the Power-VolUp key combinations and it kept bringing me to what looked like LG's recovery menu. I didn't realize that the screen is actually fake and you have to click "Factory Reset/Wipe" on there to get into TWRP. It actually took me a long time to figure that out. With TWRP installed, I searched for ROMs that I could use that were newer than Android 5.0.2 and ended up downloading LineageOS as it came up for the VK810 and since VS500 ROMs weren't allowed to be installed. Now to be fair, the LineageOS Rom that I used (lineage-14.1-20171228_233442-UNOFFICIAL-vk810.zip) is pretty glitchy. The display likes to blink a lot, many apps crash on it and there is no cellular data working for me, but I assume that will possibly be fixed in the future and at least now, I can customize more than I could on stock. On first install, I also lost my root and forgot to install the GApps package from the Lineage website. Anyway, hope this helps at least one person here. Nothing was one-click for me, but I did learn a lot about the process of rooting and flashing, and now better than to automatically allow OTA updates. I do hope LineageOS or another ROM keeps updating for the VK810 because this tablet does not seem that popular and I would like to see Oreo. Thank you everyone for your help!
Click to expand...
Click to collapse
Wow thank you so much I thought it was me having issues. I have a 410vk and as you said nothing was one click. I hope to continue to try and get root on the G Pad. Still an awesome device.
Sent from my LG-H932 using Tapatalk
XDAnonymous said:
I felt compelled to register here and post my success on getting LineageOS installed on my Verizon VK810 4G Altev LG G Pad tablet. It would not have been possible without this forum and the users who contribute, both with information and with uploads. I initially tried rooting with KingRoot and the OTA updated OS I had from Verizon but the app said there were 63 requests for rooting my device. Forget that idea. After also trying iRoot which wasn't working, I used the LG Flash Tool to downgrade to VK81035A and then was successfully able to root that. SuperSu definitely helped with the process. My guess is, even though both were Android 5.0.2, mine had OTA patches that I guess caused issues for rooting. Installing TWRP was a hassle though. None of the v500 TWRP images worked for me and many of the custom TWRP versions that I found on here did not work for me. You would not imagine the number of times I thought I bricked my device because I kept getting "Secure Booting Error! Cause: boot certification verify" errors. However, what did work for me was, using Platform-tools and VK810_twrp_2.7.0.1.zip for TWRP. For some reason, the other versions posted here did not work for me. It did take me a while to figure out how to get into TWRP because I kept using the Power-VolUp key combinations and it kept bringing me to what looked like LG's recovery menu. I didn't realize that the screen is actually fake and you have to click "Factory Reset/Wipe" on there to get into TWRP. It actually took me a long time to figure that out. With TWRP installed, I searched for ROMs that I could use that were newer than Android 5.0.2 and ended up downloading LineageOS as it came up for the VK810 and since VS500 ROMs weren't allowed to be installed. Now to be fair, the LineageOS Rom that I used (lineage-14.1-20171228_233442-UNOFFICIAL-vk810.zip) is pretty glitchy. The display likes to blink a lot, many apps crash on it and there is no cellular data working for me, but I assume that will possibly be fixed in the future and at least now, I can customize more than I could on stock. On first install, I also lost my root and forgot to install the GApps package from the Lineage website. Anyway, hope this helps at least one person here. Nothing was one-click for me, but I did learn a lot about the process of rooting and flashing, and now better than to automatically allow OTA updates. I do hope LineageOS or another ROM keeps updating for the VK810 because this tablet does not seem that popular and I would like to see Oreo. Thank you everyone for your help!
Click to expand...
Click to collapse
Can you link where you got the ROM? Is anyone actively working on it? Really too bad the vk810 never got much love, great little device. Been awhile since I've done anything with it, it's my dad's so I got it rooted on 5.0.2 and just kinda left it alone. What prompted me to come back to this forum is screen mirroring won't work. The tablet sees TV and vice versa, it tries to connect but never completes the connection, just kicks back to satellite TV after a couple of seconds of black screen. Don't suppose you tried casting on that lineage build?
AirForceOnes0010 said:
Can you link where you got the ROM? Is anyone actively working on it? Really too bad the vk810 never got much love, great little device. Been awhile since I've done anything with it, it's my dad's so I got it rooted on 5.0.2 and just kinda left it alone. What prompted me to come back to this forum is screen mirroring won't work. The tablet sees TV and vice versa, it tries to connect but never completes the connection, just kicks back to satellite TV after a couple of seconds of black screen. Don't suppose you tried casting on that lineage build?
Click to expand...
Click to collapse
I got the ROM from the Invisiblek ROMS site under /roms/lineage-14.1/vk810/ (Can't post the link as I'm currently under 10 posts)
It's definitely a start. There is screen glitching, and no LTE service (Wi-Fi only), so it definitely limits the tablet. I have not done much with it as it was a hassle just to get the root within the OS to work correctly. Some apps aren't detecting root when the OS is trying to give it to them.
XDAnonymous said:
I got the ROM from the Invisiblek ROMS site under /roms/lineage-14.1/vk810/ (Can't post the link as I'm currently under 10 posts)
It's definitely a start. There is screen glitching, and no LTE service (Wi-Fi only), so it definitely limits the tablet. I have not done much with it as it was a hassle just to get the root within the OS to work correctly. Some apps aren't detecting root when the OS is trying to give it to them.
Click to expand...
Click to collapse
It'll have to wait until/if LTE is ever functional then, my parents don't have internet other 4g out in the sticks lol. Google took me right to it, thanks. Will keep it bookmarked just in case
I'd like to write about my experience too as it took me some time to finally get the device up and running.
I will describe what I wanted to do, what mistakes I've made and what should've been the correct way.
The device itself is LG G Pad 8.3, Verizon LTE variant aka vk810
Initally I received it in a bricked state, on launching it showed the "Secure booting error" message and that's it.
1) Unbricking
The goal was to install an official LG system image and restore the tablet to a working state.
Basically, I did everything according to the steps outlined here: https://forum.xda-developers.com/lg-g-pad-83/general/vk810-4g-reliable-to-root-install-t3283027
Installed LG drivers
Downloaded the LG Flash Tool 2104
Downloaded a KDZ image
Plugged the device in the download mode into the PC and installed the KDZ using the flash tool
At that point I got a fancy idea to install a non-stock Android on this tablet.
2) Lineage OS
I chose this OS for my tablet, because it seems to be the current standard for non-stock Android installations.
I followed these installation instructions: https://wiki.lineageos.org/devices/v500/install
BEWARE: that page is for v500, so it won't work for vk810.
Lineage doesn't support vk810 officially. A mistake I've made was assuming that I can just roll along with a v500 installation. Actually, you kinda can, but for me it resulted in Wi-Fi not working and my device's MAC address being 02:00:00:00:00:00.
3) Rooting
I was quite confused here too: there are different rooting methods, and some of them can be applied in different ways.
Ultimately I found Stump to be the most comfortable for me: https://forum.xda-developers.com/lg...root-stump-root-lg-g3-sprint-verizon-t2850906
It works fine on this device and uses a very straightforward process: download APK to your PC, connect the tablet to the PC, "adb install <filename>.apk", then launch the app and that's it. It had to go through the bruteforce process to root, which took several minutes.
4) TWRP
I don't remember what exact TWRP I installed initially, but it was a 3.x version, and I encountered an issue where it couldn't mount any of the tablet's partitions. That was quite a pain in the ass.
For a while I resorted to using an older version, 2.7.x, and it worked fine.
Ultimately what I'm the most happy with is this: https://forum.xda-developers.com/lg-g-pad-83/general/vk810-twrp-3-1-1-0-unofficial-t3691551
The lesson learned here is that, again, you need to make sure stuff you install is compatible with your device.
Ultimately, after making mistakes at each step of the process, I figured out everything, and just followed the installation instructions on the Lineage page I linked earlier.
* Flash stock rom
* Root using Stump
* Enable USB debugging on the tablet, install Stump via adb and root the device
* Install vk810 variant of TWRP 3.2.1-0 via adb
* Reboot to recovery (turn off the tablet -> hold Volume Down + Power -> you should get a factory reset menu after the LG logo -> select factory reset, then confirm it and you'll be booted into TWRP. That factory reset is fake after you have TWRP installed)
* Wipe everything
* adb push the lineage / lineage's su / opengapps onto the device
* Install lineage, then su and opengapps and you're good to go
Main lesson learned: it is CRUCIAL to make sure stuff you install is compatible with your particular device. Do not assume that you can use another version, even if it is made for a device of the same family.
Just to provide an update here, this is where the ROM that I used came from: https://updater.invisiblek.org/vk810
The latest version at this time seems to be this: lineage-17.1-20200329-UNOFFICIAL-vk810.zip
XDAnonymous said:
Just to provide an update here, this is where the ROM that I used came from: https://updater.invisiblek.org/vk810
The latest version at this time seems to be this: lineage-17.1-20200329-UNOFFICIAL-vk810.zip
Click to expand...
Click to collapse
Thanks for all the great information, but I have the VK810 that has usb connection problems. It will connect, but it keeps dropping (it cannot be trusted with usb cord). I have wanted to root, twrp, magisk and other things just to play around to see what it can do or how far I can go with it. I am not afraid to trash it. Have you or anyone else had this problem? I have reset it, wiped it out, factory settings, but nothing seems to help that usb port. I was thinking that reflashing the rom might help. Any advice is appreciated.

[HELP][G3][VS985]issue connecting to PC on fastboot, need to reflash TWRP & SuperSU

[HELP][G3][VS985]issue connecting to PC on fastboot, need to reflash TWRP & SuperSU
Hello, thank you for this great forum with helpful members, I'm having an issue with an LG G3 VS985, fastboot won't recognize it while in bootloader, I need to reflash TWRP.
First of all, thank you for reading this long testament [most important details in bold if TL;TR], wanted to be as detailed as possible, maybe it will help you help me better hehe sorry about that.
Let me give you the event sequence if it helps.
> Phone had Cloudy G3 2.5 rooted with SuperSU and TWRP 2.8.6.0 since I rooted it back in 2016.
I was having some issues with phone not recognizing micro sd card and OTG-USB after messing around with encrypting it, I was curious but didn't need it, anyways. Although I dropped the phone in water a couple weeks prior so there is a chance the issue is hardware related.
That was like 4-5 months ago.
Finally decided to do a file backup and reinstall everything yesterday apr-5-2019.
> Rebooted into TWRP and erased everything (data, cache, dalvik, system, even internal storage) because I wanted a new install on everything.
> Flashed the latest official TWRP version for my device (3.0.2.0)
> Had a lot of issues flashing crDroid, found out I downloaded the wrong build, although I had to edit updater-script on the right one to make it work.
> Flashed crDroid 5.2_20190326 with open GApps for Android 9.0 Stock
> First issue encountered, I couldn't charge the phone turned off, because the battery logo appears but but doesn't do the animation and reboots the phone, I read it might be an issue with TWRP.
> Tried to flash SuperSU 2.82 SR5 with TWRP but had a LG secure boot error and couldn't boot up android.
> RE-flashing android and open GApps fixed this issue.
> Re-attempted the process several times, even wiping everything down more than a couple times, including re-flashing android several times to no avail, I was not able to flash SuperSU successfully.
I even flashed an old tool "MR.Bump" but system kept unrooted so unsuccessful.
> Reflashed Android for the last time and start reading again (after 8 hours attempting to do it well), I read that TWRP version might be the problem to flash SuperSU, so
HERE is where I have the current issue:
> Downloaded the official TWRP version 3.1.0 and flashed it.
There is no official support for 3.1.0 for the VS985 so I'm guessing it was a generic .img, of course I messed up TWRP.
> Downloaded and installed official LGMobile Drivers 4.2.0 (latest), downloaded android drivers (15 second ADB installer 1.4.3) and Android platform tools 28.0.2 on windows.
> When conected in PTP and transfer files in win7 it recognizes all the drivers well, was able to reboot the phone into bootloader from android platform tools successfully, means there is good communication between the device and PC.
The issue is once the phone is in the bootloader and trying to flash TWRP, win7 has issues installing CDC serial drivers, in the end in device manager all drivers seems installed but win notification center says there was a problem installing LGE AndroidNet for VZW USB Modem, seems to be issues with CDC Serial or something, when trying to access the properties on the VZW USB Modem it freezes so there's an issue here.
That means when doing adb devices or fastboot devices command, doesn't find anything.
Tried the same in win10, had different driver problems but in the end everything gets installed after rebooting. Same issue, no response from phone when in bootloader.
Message is "Waiting for any device".
Maybe there is an issue with some low-level driver/kernel/firmware that is creating this issue, I would even consider to flash stock LG Android to start from scratch, if you have any guide on how to do it please provide the links!
Additional note: When connecting the phone in USB Tethering win7 gives bluescreen.
> FORTUNATELY I messed TWRP but the phone can still boot android so it's not rendered unusable (yet lol).
I must admit I wasn't super careful downloading some stuff, I did it old school (trial and error) and most of the times it works, I consider myself being a little tech savvy, but right now I'm stuck, I guess I could continue using the phone like this but if I have any issues it would be difficult to resolve and I would lose functionality without root (I could live unrooted though but I wanna resolve this) and honestly I love the G3 so why change it? haha.
BTW I found these on the net, do you recommend it? what TWRP do you recommend for the VS985?
I downloaded and wanted to install this one https://forum.xda-developers.com/lg-g3/development/recovery-unofficial-multirom-twrp-artx-t3657524
and found this one supposedly 3.2.1 for the vs985 here: https://basketbuild.com/devs/yshalsager/TwrpBuilder/lge/vs985
Any help will be greatly appreciated.
Cheers.
I posted it on a different area and got no response, so here it is the G3 area.
@disrupted_mind, wow, that was a great detailed post. Alas, can't think of anything much to suggest at the moment. Just a few things come to mind.
Make sure to use a USB 2.0 port on the computer. I've heard of issues with USB 3.0.
Use a good cable but I assume yours is good or original.
There's another TWRP from @HardStyl3r, v3.2.3. Since he's one of our last ROM devs I'm sure it might be the one to use, especially if you're trying Pie.
https://forum.xda-developers.com/showthread.php?t=3813552
[RECOVERY][3.2.3.0][UNOFFICIAL] TeamWin Recovery Project for LG G3
Let us know if that one works or not.
LG G3 D851, AOSPA-L ROM, Nebula Rev9.3 Kernel, microG (NoGapps), MultiROM, XDA Legacy
marcdw said:
@disrupted_mind, wow, that was a great detailed post. Alas, can't think of anything much to suggest at the moment. Just a few things come to mind.
Make sure to use a USB 2.0 port on the computer. I've heard of issues with USB 3.0.
Use a good cable but I assume yours is good or original.
Click to expand...
Click to collapse
Thank you for replying, now that you mention it, all the ports on the PC's I've tried are USB 3.0, I think I have an older lappy with USB 2.0 and I will try that next. If that doesn't work I was planning on rooting the phone temporarily with kingroot or kingoroot, so I can use flashify and re-flash TWRP (just thought about it last night hehe) and then re-flash the ROM since according to this thread, kingroot and kingoroot might be malware.
marcdw said:
There's another TWRP from @HardStyl3r, v3.2.3. Since he's one of our last ROM devs I'm sure it might be the one to use, especially if you're trying Pie.
https://forum.xda-developers.com/showthread.php?t=3813552
[RECOVERY][3.2.3.0][UNOFFICIAL] TeamWin Recovery Project for LG G3
Let us know if that one works or not.
LG G3 D851, AOSPA-L ROM, Nebula Rev9.3 Kernel, microG (NoGapps), MultiROM, XDA Legacy
Click to expand...
Click to collapse
Thanks, yes, precisely yesterday I kept reading trying to find a solution and bumped into @HardStyl3r's version, already downloaded it
I like Pie very much by the way, but I think it drains the battery a little faster than CloudyG3 (android 5), maybe the old hardware struggles too much haha, but I will keep using it for some time. By the way, do you think AppOps is still necessary with Android integration to allow/deny permissions (sorry, noobie question since I'm just transitioning from old to newer android with that feature).
Any ideas on the charging the phone off issue?
I will update the thread with any news
Cheers.
I have good news and bad news.
I was able to reflash stock KitKat using TOT method, only way it could work since I had no connection to PC with fastboot commands on cmd.
Updated android over the air and PC, it update to 5.0.1 over the air and wanted to go faster so tried to do it from PC, what a mistake, when I was downloading Marshmallow info on xda I found that it might be difficult to root android 6, so cancelled the operation from LG Update Software on PC. That went "fine", didn't update to Marshmallow.
Rooted the phone using the One-Click root method, worked fine apparently. Installed flashify and flashed the Unofficial 3.2.3 TWRP, that didn't go well, I dont have access to Recovery mode nor Bootloader/Download mode now. "Recovery" ("vol-" + "Power Button") mode gives "certificate/secure boot error", Regular "Bootloader/Download mode" is non-existant or I can't access it in any given way, tried "vol+" while off + "Power Button", tried to reboot to it from Rashr, nope, it just continues to boot android, the other "Download mode ("Vol+" + "Connect USB cable to PC")" (don't know if it's the same as Bootloader) gives "certificate/secure boot error". I even flashed the latest official TWRP for vs985 and 2.8.6 that I knew definately worked before, didn't work.
I was able to boot into fastboot following "this" thread but it doesn't perform commands.
When booting to Android I kept receiving notification that I had a pending update, I managed to wipe /data and /dalvik from adb shell, that resolved that issue.
Attempted to reflash stock KitKat again, but I can't, since phone doesn't have bootloader or recovery no more.
At least I still have working rooted 5.0.1 Lollipop, but have the other issues. I want to attempt to re-flash aboot.img, laf.img and sbl1.img to fix those issues but since its my main phone don't want to hard brick it right now.
Any input is welcome and appreciated, will keep reading a lot, think I might open a different thread for this.
Cheers.

[FIXED] [OP7T HD1905] No WiFi (auto turn off) during root

Bought directly from OP website a little over a year ago, was rooted on Android 10 and then did an OTA update which ruined my root and I never really bothered with it for a while. Started tinkering again a few days ago.
Here is what happened to the best of my knowledge:
> Unlocked bootloader w/ root upon purchase (And 10)
> Did OTA update which messed up root, kept unlocked BL
> fast forward - tried re-rooting, followed this guide https://forum.xda-developers.com/t/guide-android-11-how-to-root-oneplus-7t.4253183/ (And 11)
> my device wasn't recognized in fastboot, finally realized I needed the USB drivers.
>Got the drivers, rooted my phone, and put TWRP on it without realizing it didn't work.
>Found the payload dumper, downloaded the most recent one from OP website, flashed that stock boot & stock recovery, patched w/ magisk, then flashed that. (wouldn't this have fixed the WiFi issue itself?)
Sweet, now I have root access but my WiFi won't turn on. I started looking up issues with that and found out that I mismatched build numbers (I think) because someone mentioned having the same issue. https://forums.oneplus.com/threads/wifi-not-working-after-magisk-root-on-oneplus-7t-pro.1228260/
My question to you is, how do I fix this?
Msm back to stock, factory reset, and if still broken, then hardware broken
HueyT said:
Msm back to stock, factory reset, and if still broken, then hardware broken
Click to expand...
Click to collapse
MSM program used to no avail - main PC has 3.0/3.2 ports, old laptop said "waiting for device" for 30+ minutes
Thanks for your help though.
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I dug a bit deeper and tried using Oxygen Updater app - it flashed the most recent OTA update which fixed the wifi issue, I used payload dumper on the payload.bin from the Oxygen Updater app and successfully patched with Magisk. Root achieved with wifi enabled.
99% sure my wifi issue came from me mismatching builds or something.
Needs usb Qualcomm 9008 driver for edl mode to work--needs this for msm to unbrick op7t. Important tool to have

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