I have a vs980 that I want to downgrade. Currently I'm on rooted 24a and I want to go to 12b. Do I simply flash the rooted 12b rom and 12b radios? Or do I need to follow the "Back to Stock" thread and flash the 11a rom via the lg tool? I've read about and flashed a "bootstack" and don't think either of those would downgrade that.
I'm nervous about downgrading because I went though hell recently trying to upgrade from 12b to 24a. After flashing paranoidandroid kitkat rom and 24a radios I was disconnected from verizons data network for a couple of days. I tried everything and ended up on verizon's rooted 24a without data connectivity. I thought the sim was corrupt but was on vacation and couldn't go to a verizon store. Weirdly, after a few days, it simply started working.
I had a lot of charging issues on verizon's 12b with various custom kernels and decided to flash 24a - only to find out that flash is mostly broken on it. I want to flash to rooted 12b and this time not use custom kernels.
Thanks for your help.
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Hey everyone!
I just got my AT&T G2 last night.. I like the phone, but really want to root and ROM, coming from a gnex.. its a bit bloated to me
Anyway, it was 4.4.2 out of the box with firmware verison, D80020c. Originally I thought I would need to revert to stock firmware D80010d? However now I have been told I can just use ioRoot25 and then flash Cloudyfa's AutoRec recovery? Is that correct?
I'm going to get at this, this afternoon but obviously it would save a lot of work if I could just use ioRoot25 but as I said, I want a custom recovery also so I can flash a non-stock rom.
Please let me know what would work, and what works best.. Thanks, Chris.
I've went ahead and downloaded supersports tool to revert to stock D80010d. I haven't actually ran it yet, because I want to wait on input from people in this thread. However, it seems like rooting with ioRoot on D80010d, flashing custom recovery, and than flashing a ROM would be the way to go.. It is my understand that currently it is no yet possible with KK to have custom recoveries? Being on stock KK doesn't do anything for me anyway.. I'll probably just flash a asop based ROM running 4.4.2 anyway and go that way with it.. So it would work like this..
Currently on D80020c (KK) --> Revert to stock, D80010d (JB) --> Root using ioRoot (any verison would work I guess?) --> ADB flash over either CWR, TWRP, or Philz recovery? --> Get some 4.4 based rom with gapps, flash it and all is well? Then I will be rooted and romed with a kitkat based rom correct? And all in time for the weekend?? lol.
Right on. Use ioroot25, but apart from that you've got it all figured out. You're right there is no recovery for pure kk because they patched the Loki exploit, but there are work arounds. Everything you need to know about rooting and flashing had been covered here so just go ahead and do your thing and enjoy your new phone :good:
Hello, I've been out of the rooting scene for over a year now since I bought my Galaxy S4. When I first bought it, i had it rooted but could not install a custom rom because it was on MF3. So, once again I am trying to get back into rooting with the latest OTA update and a NC1 baseband. I've been looking around on how to root and install a custom rom but I've been gone so long that I'm just lost.
From threads I have read I can downgrade my phone to NB1 then to MK2 to root. However, I haven't really been able to find an answer to if I can install a custom rom to it, only upgrading back to the OTA and keeping root. I have been having massive overheating problems with the stock firmware and have a large burn mark on the back of my phone and would like to switch back to CWM which i had on an old phone.
Laemon said:
Hello, I've been out of the rooting scene for over a year now since I bought my Galaxy S4. When I first bought it, i had it rooted but could not install a custom rom because it was on MF3. So, once again I am trying to get back into rooting with the latest OTA update and a NC1 baseband. I've been looking around on how to root and install a custom rom but I've been gone so long that I'm just lost.
From threads I have read I can downgrade my phone to NB1 then to MK2 to root. However, I haven't really been able to find an answer to if I can install a custom rom to it, only upgrading back to the OTA and keeping root. I have been having massive overheating problems with the stock firmware and have a large burn mark on the back of my phone and would like to switch back to CWM which i had on an old phone.
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No CWM. You can only use Safestrap, a variant of TWRP for locked bootloaders that doesn't flash kernels. Due to that restriction (if we tried to flash a custom kernel we'd get bootloader check fails) we can only run ROMs which the stock kernel supports, meaning other Touchwiz ROMs and the one GPE that's been posted in the General section. Part of the downgrade and root process is using Safestrap to update to 4.4.2 with a modified OTA, and so you just replace that step with flashing a ROM, the kernel modules, and then the ODIN files.
Hello
Anyone know where to get latest basebands without flashing ota on the d802 international? I have been googling without finding anything and i have seen that my gfs unrooted and stock phone has newer baseband then my cm11 phone, but thats probably because I never installed kitkat stock.
I'm using GSM network on the verizon G2 (vs980), however i can't get data to work on the 24a modem when on GSM networks. However 12b works without issue, but the problem with this is I have to find old enough ROMs that can support 12b or newer roms that were modified to work with the 12b modem. Now if i could understand what needs to be modified on an AOSP rom to make it compatible with 12b modems i could do the rest on my own. So far i've found one AOSP rom compatible with 12b and that was a modified OMNI rom. So if anybody could guide me into the right direction of how to modify roms to be compatible with 12b or of more 12b compatible roms i would be greatly appreciative. thank you very much for reading this.
Hi All - I am still running my LG G2 with stock rooted Jelly Bean with the LG/VZW 12B software. I only wanted to root so I could get the tether app running and freeze bloat and I have been very please with my phone and never had a reason to upgrade. However, after seeing a few enhancements from KitKat, I now want to upgrade. I've had the OTA software frozen by titanium backup but recently unfroze everything and then my phone downloaded the OTA 26A update - BUT I HAVE NOT INSTALLED IT YET. However, I've been reading about a lot of issues with this so now I'm second guessing my decision.
Is there any way to keep my root from 12B -> 26A???
Should I upgrade to 24A first? I read somewhere that rooting 24A and then upgraeing to 26A keeps root.
Is there a way to downgrade back to 12B if I'm unsatisfied by the results? I just want to make sure after the upgrade that I can still use wireless tether and still have a flawless phone.
Thanks.