Downgrade from MM to LP, how to? - G4 Q&A, Help & Troubleshooting

Hello guys. Really big help i need. I'm unclear based on this thread or previous 10n threads how to roll back from MM to LP. I tried once using 10n thread and got stock forever on tmobile stock screen. Would rather not try that again. I recovered by flashing kdz to 20i. 20i camera mods do not work so i would like to be on LP for those mods which matter to me the most. 100% pic quality. I used also LGup to did upgrade to 10n from 20i in xda thread that suppose to work but same result. Stock on tmobile boot screen and never passes by this.
Anyway can admin of this thread or admin put a stick , short step by step how to downgrade from 20i to 10n without getting stock on boot screen. Would rather avoid bricking it to boot loop issue.
Thank you so much. I used this thread step by step and got soft brick
http://forum.xda-developers.com/tmob...d-rom-t3188858

Related

Help, I rooted my phone and I get a warning everytime i open it

Hello
So after foolishly updating to Marshmellow and discovering that all my apps no longer update in the background, i flashed my device to the LG G4 V10D-226-01 software version, the 10D Europe Open from the LG g4 "Go back to stock rom" thread.
Problem is, everytime i open my phone i get "Warning: Current version is not available for user. Cant find matched cust for Nt-code mcc/mnc[22601],subset[ff]. I have looked both on google and here and everything i found was for the G3 model and it involved using a "custom restore" image. but no explanation on how to use it, its not a KDZ so i cant flash it.
I'm pretty new to all this and everything i wanted was to go back to my Lollipop variant after seeing how Marshmellow behaved on my phone. (not auto updating my background apps).
I appreciate any help you guys provide.
Thanks
u cant downgrade once u go to Marshmallow. Its a security thing tht was updated in the latest firmware b4 Marshmallow came out. Ur gona hav to start all over again wth the latest KDZ b4 Marshmallow
I reformated into a Lollipop KDZ by flashing my ROM from the "Go back to stock" thread. Problem has appeared after i did that. I am currently on Lolipop v10D
nobody has any idea on how i can solve this issue?
Ashdrake said:
nobody has any idea on how i can solve this issue?
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download the kdz file for your device from here and flash it using LG UP here. all will be fine. i downgraded from MM to LP after MM had big battery drain. many people have downgraded using this method.
reg66 said:
download the kdz file for your device from here and flash it using LG UP here. all will be fine. i downgraded from MM to LP after MM had big battery drain. many people have downgraded using this method.
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Click to collapse
i did that, problem is, i'm from Romania so i dont see my countries ROM there. I have used the classic open eu one and the barebones one and no matter which i use i still get that warning when i open my phone.
bump to the top again, anyone knows what i should do?

Get from Rooted Lollipop 13b to Stock Marshmallow

I'm tired of the problems and struggle I've had attempting to use my rooted G4. I'm currently on 13b rooted and it's been giving me problems. It randomly reboots and doesn't start up at times. And it's so sluggish. I've gotten a replacement because I flashed the wrong kdz. I just want my phone to work without all these problems. I just want to get to the stock Verizon MM for my G4. Is this possible?
You should be able to flash the MM kdz - they can be found here in the general section. Be sure to verify it is the correct kdz.
Keep in mind once you go to MM you won't be able to achieve root without downgrading back to LP. I think there is a downgrade thread here in general as well if you need it.
Sent from my LG-H815 using Tapatalk
Thank you I just downloaded the KDZ and flashed via LG UP. It installed without any problems. I'm aware that you can't root on MM, I'm ok with that. I need a break from rooting after all of this. Thank you I appreciate it!
Glad to see someone here not happy with rooting the G4. I don't find it worth the risk or the benefits worth it without the ability to flash custom roms. I've never rooted a phone without there being a way to install a custom recovery.
For anyone interested, The Android Central podcast discussed the topic of rooting and flashing roms a bit on their most recent episode. Most of them agreed that there isn't as much of a need anymore to root and flash roms and that it's kind of died down a bit. Features that people used to have to root their phones for are now available on most stock roms.
Sent from my VS986 using Tapatalk
ADoug said:
I'm tired of the problems and struggle I've had attempting to use my rooted G4. I'm currently on 13b rooted and it's been giving me problems. It randomly reboots and doesn't start up at times. And it's so sluggish. I've gotten a replacement because I flashed the wrong kdz. I just want my phone to work without all these problems. I just want to get to the stock Verizon MM for my G4. Is this possible?
Click to expand...
Click to collapse
KDZ
http://forum.xda-developers.com/verizon-g4/general/kdz-download-marshmallow-kdz-25a-lg-t3354556
how to install LGUP tool
https://www.youtube.com/watch?v=igB5rnLRXSc&spfreload=10
i know at the end of the video it says close the app, but dont, just start it and you be upgraded to MM in no time just make sure upgrade is checked
if you want to start fresh, then you can just do what my video says to get refurbished checked
if you upgrade with a rooted rom you have to factory reset your phone inorder for MM to boot

Seriously need help Twrp Soft Bricked my phone

@ day ago I set off on a journey to root my phone so I could get xposed to work with pokemon go. I Followed a couple guides and every site stated that you need Twrp. The thing is im running marshmallow on the D850 and any time I try to boot my phone in recovery I get "boot verification failed" and get a black screen with the notification flashing and this even prevents me from even doing a factory reset. From lurking the forums i've learned that the best way to fix is to flash back to an older version of android but most of these guides seen old and out dated and I cant seem to find a kdz for the D850 . Thank you and your help will be very much appreciated.
snakeyes250 said:
@ day ago I set off on a journey to root my phone so I could get xposed to work with pokemon go. I Followed a couple guides and every site stated that you need Twrp. The thing is im running marshmallow on the D850 and any time I try to boot my phone in recovery I get "boot verification failed" and get a black screen with the notification flashing and this even prevents me from even doing a factory reset. From lurking the forums i've learned that the best way to fix is to flash back to an older version of android but most of these guides seen old and out dated and I cant seem to find a kdz for the D850 . Thank you and your help will be very much appreciated.
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Click to collapse
If you dont find an mm kdz jut flash a lolipop kdz by using lg up....
The only way to go back to stock firmware on D850 is to flash a tot file using LG Flash tool (as no other method is currently available).
You can follow this guide for that purpose
http://forum.xda-developers.com/att-lg-g3/general/unroot-return-to-factory-stock-att-lg-g3-t2820827

Can verizions newest update be returned to a lower version or be rooted??

Guys I want to enable hotspot. My original g4 was one with series # that went into loop. I got a new one and damned thing has newest vs software and marshmallow on it. Help please lol
tigerh4rebz said:
Guys I want to enable hotspot. My original g4 was one with series # that went into loop. I got a new one and damned thing has newest vs software and marshmallow on it. Help please lol
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Click to collapse
This thread will tell you how to downgrade from MM to LP. It works. I had the same problem you did.
Yep, That worked for me. You need to "return to stock" like post above and downgrade the firmware. Use the 13b firmware stock, so you can just flash over it with the 13b rooted file. Easiest way i found. And That is the program that MUST be used. The other way WILL fail every time.
We just need a UNLOCKED BOOTLOADER so we can custom recovery like TWRP and start flashing ROMS!

D850 Stock MM Rom to use with LGUP

I have hit the dreaded screen flickering issue, and using the folded paper trick think I can convince ATT that my phone is in tact enough for a tradein. The problem is I think I need to be on a non rooted ROM for them to accept me. I'm currently on Fulmics 6.1 and am trying to use the LGUP tool to get back to KK and out of root. LGUP wont recognize my phone with Fulmics, and Resurrection Rom had the same sort of problem. According the the LGUP thread I need a non customized ROM for it to work. I've searched all over and I can't find one for the D850. Does anyone know a ROM that should work?

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