Just upgraded from OPO to OP3 and was wondering is it possible to flash different modem on the OP3?
Anyone?
I'm on a custom rom but the reception isn't good cause I had to flash back to 6.0.1 stock before romming it. Anyone have a link to the Nougat modem? Or could upload it?
I originally upgraded to the custom Freedom rom which is based on the stock H815 7.0 from stock marshmallow 20v. I had problems so I clean flashed the same developer's Despacito rom, also based on H815 stock 7.0. The problems persisted so I clean flashed LOS 14.1.
I would prefer to downgrade back to 20v but I'm confused about whether arb issues affect this scenario.
Update: I took a chance on downgrading since I couldn't live with the radio issues on the unofficial Nougat roms. Flashed a zipped stock official T-Mobile 20v and so far no problems. I'd still like to know why this worked but "rolling back" bricks the G4 on "official" stock.
channeledbymodem said:
I originally upgraded to the custom Freedom rom which is based on the stock H815 7.0 from stock marshmallow 20v. I had problems so I clean flashed the same developer's Despacito rom, also based on H815 stock 7.0. The problems persisted so I clean flashed LOS 14.1.
I would prefer to downgrade back to 20v but I'm confused about whether arb issues affect this scenario.
Update: I took a chance on downgrading since I couldn't live with the radio issues on the unofficial Nougat roms. Flashed a zipped stock official T-Mobile 20v and so far no problems. I'd still like to know why this worked but "rolling back" bricks the G4 on "official" stock.
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dont flash 20i thats antirollback V2 after that upwards its V3 so (20o-20p-20q-20r-20s-20v) they all V3 so you can flash any in V3 but dont downgrade to V2 wich is 20i and lollipop 10N.
raptorddd said:
dont flash 20i thats antirollback V2 after that upwards its V3 so (20o-20p-20q-20r-20s-20v) they all V3 so you can flash any in V3 but dont downgrade to V2 wich is 20i and lollipop 10N.
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Thanks for the arb specifics. Good to make a note of.
After I successfully downgraded to 20v stock I heard from the developer of the custom stock ROMs I'd had problems with. Turns out he (wisely) uses the 20v baseband and bootloader along with stock 7.0 ported from the H815. I would have relaxed more if I'd known that from the beginning. It's my understanding that developers who base their ROMs on Legacy or AOSP *do not* usually replace the baseband and bootloader when they flash a later version so that it is safe to drop back (within the type of parameters you describe above). I guess he followed that model.
It's always something.
channeledbymodem said:
Thanks for the arb specifics. Good to make a note of.
After I successfully downgraded to 20v stock I heard from the developer of the custom stock ROMs I'd had problems with. Turns out he (wisely) uses the 20v baseband and bootloader along with stock 7.0 ported from the H815. I would have relaxed more if I'd known that from the beginning. It's my understanding that developers who base their ROMs on Legacy or AOSP *do not* usually replace the baseband and bootloader when they flash a later version so that it is safe to drop back (within the type of parameters you describe above). I guess he followed that model.
It's always something.
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actually we use korean port not h815 we tried and it gives lots of error and FC. i think h815 does flash bootloader.. us we didnt get any beta we use korean KDZ edited to work on h811 volte is missing 4G icon is missing at least on my end it is. and h815 had a beta wich is better then use korean port.
what issues were you facing.? am using h811 port because despacito has black on black text if you use dark theme.
raptorddd said:
actually we use korean port not h815 we tried and it gives lots of error and FC. i think h815 does flash bootloader.. us we didnt get any beta we use korean KDZ edited to work on h811 volte is missing 4G icon is missing at least on my end it is. and h815 had a beta wich is better then use korean port.
what issues were you facing.? am using h811 port because despacito has black on black text if you use dark theme.
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Click to collapse
The developer of Despacito, etc. contacted me and confirmed that he uses the Marshmallow radio and bootloader so that is why I was able to go back to H811 6.0 20v. I had intermittent issues with the sd card not being recognized and forcing a re-format.
channeledbymodem said:
Thanks for the arb specifics. Good to make a note of.
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If you want to know more details checkout https://tinyurl.com/antirollg4
Sent from my LG-H815 using XDA Labs
Hi guys, I had a question about flashing roms. I have a carrier unlocked AT & T Samsung S9 G960U (Baseband: G960USQU3ARG7). I wanted to flash a different rom to get rid of the bloatware. I was curious if I could flash the G960U1UEU3ARL1 (G960U-1 XAA) version without any problems.
Also, I know it might be a very silly question, but can other global model variants (G960F for example) be flashed onto this device? Thank you so much.
hello.my question is:is possible to flash a g988b stock rom on g988n device????
thanx a lot for your time
anyone????
The ROM itself is the same, the difference is any drivers for the radios as these devices have different radios that support different bands. If you flash g988b rom on a g988n your radios may not work at all. Don't know of anyone who have tried it yet.