LG Stylo 2 Boost, Guide to Downgrade ZV4 to ZV3 - LG Stylo 2 Questions & Answers

Posting for visibility since it took me some digging to eventually reach this point. Worked for me, Do at your own risk.
This is for the LS775 ZV4. I did this on a Boost Variant.
Credit to roadkill42
Important! Back up all important data you do not wish to lose. Only works on ZV4.
Guide:
1. Enter Download Mode ( Phone Off, Holding Volume Up, Plug Into Computer )
2. Launch Uppercut ( Will Open LGUP, Phone Should Be Listed )
3. Add ZV3.kdz
4. Start Update
5. Phone Will Reboot ( Mine Looped Loading UI )
6. Shut Off, Enter Recovery Mode, Clear Cache Data
7. Reboot
8. Shut Off, Enter Recovery Mode, Factory Reset
9. Phone Now Downgraded To ZV3
*Note
If you are stuck on configuration tab after networks once you factory reset, you may skip by pressing Volume Up & Down repeatedly.
Links:
Uppercut and LGUP 1.14
https://forum.xda-developers.com/lg-g5/development/uppercut-lgup-loader-g5-variants-t3511295
ZV3.kdz
https://www.androidfilehost.com/?fid=11410963190603871814
Source
https://forum.xda-developers.com/lg-stylo-2/help/boost-varient-permanent-root-t3435543/page16

I have problem
PHOTO imgur.com/CDIqc7E
And not exit from Download Mode, after reboot phone enter in Download Mode automat???

Related

Bricked D802 - Download mode OK but NO recovery

Hi there,
1. Rooted my phone using ioroot
2. Installed TWRP using AutoRec
3. Rebooted into Recovery
4. Mistakenly wiped everything from my phone using TWRP
5. Pushed CM13 and GApps to my phone using ADB
6. Tried to installed both simultaneously using the TWRP queue option (CM13 first in the queue)
7. Phone rebooted, LG Logo displayed and went to constant black screen after 1 second
8. Can not access recovery mode anymore
9. ADB doesn't recognize the phone anymore
10. I still can access Download Mode using the Vol Up button and plugging the phone to PC using USB cable.
11. Can not install stock ROM using LG Flash Tool. It crashes when reading phone information
12. However the LG Support Tool seems can recognize my phone with Software Version: D80230C and it seems that the "Upgrade Recovery" button works in "Options" menu of it (but canceled it as it downloads 1.6 GB ROM).
So:
1. Seems that I have wiped recovery from my phone
2. Download Mode accessible
3. ADB unusable
Any possibility to push TWRP to my phone without ADB but with Download Mode?
It's new year holidays in Iran and there's no repair center open here.
Heya,
Got in a really huge pickle myself yesterday by installing a bootstack, plus I wiped everything as well. Lost the recovery and LG logo showed for a sec when booting. Fortunately I got it to work again and I'm sure you can too.
So here's what you do:
1. (may not be necessary) Check if your phone is in fastboot mode after the 1 sec boot logo and also if you connect your phone with the PC will you see a lot of partitions. If yes then get yourself the handy tool called SRKTool. Open it up, choose "4" to go to fixing options, then choose "5" to unbrick and choose your model. Next just look at what they write you.
2. Get yourself a "LGD802AT-00-V10b.....tot" tot file which you can find in the forum.
3. Watch the video explaining how the process works and also download the required files mentioned in the video description "https://www.youtube.com/watch?v=wJtcPNklrfw".
4. After following the video you will hopefully have a working phone with android 4.2.2.
5. The rest is up to you; flash a KDZ Lollipop ROM and using SRKTool to root and put TWRP to use that or flash CM13.
To sum it up, there is a way out of this problem.
Good luck!

**** HELP ***** Factory Reset STUCK at 99%

After performed wipe cache and firmware update with "Swift&Fast Slim B160 aio" ROM, the phone reboot and stuck at waiting for booting... ==> wait for 3 hours and still show the same as BOOTING.
Performed the factory reset by press Volume Up and Power, the Factory Reset is now stuck at 99%
Please help to the the phone back in working condition.
Resolved yet?
Possible idea
You can probably still load TWRP. Press and hold volume down + power at the same time to load fastboot mode.
ROM Flashing
Obtain a ROM of your choice, and note the location on your computer.
reboot your device into fastboot mode via one of the following options.
1. adb reboot bootloader (requires USB debugging to be turned on).
or...... power off the device then back on with 'vol up' + power button.
Wipe your device.
2. fastboot -w
Update your ROM.
3. fastboot update </path/to/your/RomFile.zip>
Your phone will update and automatically reboot into the new ROM. Try another ROM if Swift & Fast Slim isn't working. Your file could be corrupted.
did u get things fixed?

SOFTBRICK BL in GALAXY S8 Plus - POSSIBLE SOLUTION.

I recently flashed a custom recovery in Galaxy S8+ (SM-G955FD) and it stucked on boot .
Than, ODIN stopped in been able to flash any partition and started returnning a "DEVICEINFO" message error every time.
To by-pass this BL soft brick, I used a new trick:
1- Start ODIN (I used 3.12);
2- Choose partition to flash (BL, RECOVERY, your prefered flavor) at the right option in ODIN:good:;
3- TURN OFF THE DEVICE;
4- PUT IT IN DOWNLOAD MODE HOLD: VOLDOWN+BIXIE+POWER and AFTER the option screen PRESS VOLUP;
5- TRICK PART: HOLD VOLDOWN+BIXIE+POWER at MOBILE AND *AT THE SAME TIME* (PUSH START BUTTON) in ODIN AND CONTINUE PRESSING VOLDOWN+BIXIE+POWER until download mode pre-option screen;
6- You get another error in flashing process; NO PROBLEM! :good:
7 - Put the mobile in DOWNLOAD MODE AGAIN, just pressing VOLUP, because you already put it in download mode pre-option screen state holding the keys in previous step.
8- Now, FLASH normally for a second time, and it will work :victory:.
I guess it works with all newer S8 BL.
Good Luck!

Hard brick

Hey their. So i jsut bought a one plus 6t and started playing around iwth it. I tried to get twrp and i got it but when i rebooted to os i had no wifi. So i download magisk zip and flashed it. After this i got stuck in bootloop and so i wne to twrp and wiped everything except system. Then i rebooted and got this message Qualcomm CrashDump Mode Attempted to kill init! exit code=0x0000000b do_exit. Then i freaked out and accidently wipes system too. Now i think i have a complete brick as adb still works but i cant transfer any file from pc to phone because theirs no system. Please help!!!
Never wipe system and vendor on A/B devices, literally, never.
Boot twrp and flash OOS or use msmdownloadtool.
What do you mean flash OOS. Like flash a fastboot file? And what version of msmdownloadtool should I get as their is no system. Should I get 10 cause that was my last system or it doesn't matter.
Update. I left twrp after flashing a stock image and now adb doesn't recognize my phone. When booting into recovery I go into the one plus recovery. Now I'm really screwed.
Okay now im really screwed. Whenever I boot with power up or power down I get sent to the bootlaoder page that says fastboot mode products name. I cant leave this page however. On the options above the information I click reboot recovery I get sent back to this page.
UPDATE. My phone is a literal brick now. It won't even turn on. I tried to force reboot it before and after it powered off it wont turn on. Its fully charged and when connecting to charger of holding buttons nothing happens. I have no warranty so Im hoping that someone can help me.
The "bootloader page" is fastboot and that's normal because there's no system to boot, you wiped that partition... and ADB only recognizes the phone when the boot process ends and ADB is enabled in the phone.
If you press vol up + down when you connect the usb cable the phone boots in EDL (Emergency Download Mode) mode, long press power + vol up to leave that state.
Now, download msmdownloadtool from here, extract the file, power off you phone, conect the usb cable to your pc, press vol up + down and connect the usb cable to the phone, open msmdownloadtool and flash the OS.
Edit: Read this thread for more detailed instructions.
What do you mean by flash the OS. The OS in the system or do I have to download one?
whenever I plug in my device it vibrates and then goes into the fastboot page. Also adb can detect it if I type in fastboot devices.
So i go the device to work and MsM worked until 4 seconds and then It said param preload for status of connection and status of last communication says device not match image
Try with the fastboot ROM.
When i downloaded another version of MsM it did not say no image match instead it stays at 4sec and says recording download time
Can you give me instructions on how to use the fastboot room? Like after i download it what should i do with it?
Download the rom, unpack it, boot your phone in fastboot (Power + vol up + vol down), connect the phone to your pc and execute the "flash-all.bat" file, and just wait.
um what is flash-all... How does it work what am i supposed to do.
what does unpack it mean?
Hey their im going to assume you meant to unzip the file and then open the file called falsh-all.bash. In that case when i do that i get this message "error: failed to load 'images.zip': No such file or directory
Press any key to exit..." In a CMD window

LG V35+ won't enter recovery mode

I bought the phone from AliExpress. I've tried holding all the keys in all the combinations and the phone just boots normally. I've run adb reboot bootloader, authorised access from the phone ,and it just reboots normally. I've just used LG UP to update the firmware to V350NO30d. Nothing has changed. Can anyone suggest a fix?
Additional: According to this page it's not the usual power & volume up combination. https://droidrecovery.com/lg-v35-thinq-recovery-mode/
You have to hold volume up and connect the USB cable. I tried the combination to get to download mode (volume down & connect USB) and that works. The bootloader/fastboot combination still didn't.
Update: The phone's bootloader is already unlocked. See screenshot. As I've already flashed new firmware to it using LG UP can I be sure there's not nasty spyware left on it? I wanted to do a full wipe using TWRP and return it to stock. Apparently TWRP isn't easy to use on this phone.
[RECOVERY] OrangeFox for LG V35 (judyp)
Requirements -LG V35 with unlocked bootloader -Android 10 (Oreo and Pie are untested) -A PC and ADB + Fastboot Download https://www.mediafire.com/folder/rd4o8mwzfg88i/Ofox Instruction 1. You need fastboot access. Erase the laf_a and laf_b...
forum.xda-developers.com
Follow this. Start by erasing laf_a and laf_b partition.
Ok, anyone having issue with phone not going to download mode or fastboot mode? Tried plugging usb cable with volume +/- nothing happens? Could it be because i flashed orange fox recovery? I feel its the only thing that this could happen tried flashing kdz by manually(kings tool) going to download mode but still not going to download mode when pressing volume buttons

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