I have a SCH-I535 and rooted it back before jelly bean was released for it. Therefore, I still have the ICS bootloader and radio. I am currently running a gummy nightly on 4.4.2. I read that if I flashed a newer radio, I would lose root and relock the bootloader. I want to flash a new radio because I get terrible signal compared to the same phone with a newer radio.
Is it safe to flash a newer radio?
See this thread
http://forum.xda-developers.com/showthread.php?p=29134924
Sent from my Last Ever Samsung Device.
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Hey,
I'm a little confused right now, and just want some clarification on a few things since I know if I do this wrong, my phone might get bricked in the process.
Right now I'm running stock HTC Sense 3.0 (went to my stock backup from my last ROM) rooted and s-off, with ClockworkMod Recovery
HBOOT 1.17
My end goal is to end up with a device where I can flash CM9, and have it work properly. And I believe I need the android 4.0/sense 3.6 update. Which I cannot get since I got my phone s-off
From what I understand I need to flash the stock recovery to be able to install the ICS OTA update, so my device will actually run CM9.
Where I am stuck here is what file do I need, and do I flash it just like a ROM?
Any help would be hugely appreciated!
Thank you
You need to update the firmware to run any ICS ROM.
Once you update the firmware you can flash CM9 like any other ROM.
Is it safe to downgrade from stock jelly bean to stock ICS?
There reason I'm asking is that I wasn't able to get the Jelly Bean OTA to work so I manually flashed the Jelly Bean OTA using Odin. The one I flashed came pre-rooted and pre-loaded with a custom recovery. I want to have a completely untouched stock version of Jelly Bean, something I haven't been able to find here or elsewhere (I would get this by doing an OTA update to Jelly Bean from the stock ICS rom that I flash).
I'm thinking that the reason that I couldn't get the OTA to flash (it gave me an update fail notification every time) was because I wasn't completely stock on the previous ICS version, even though I had unrooted, relocked the bootloader, thawed bloat, etc.
If anyone could answer the first question, and the others I've raised, that would be great.
(I know that it is probably OK, but I wanted to double check since it was a major no-no to downgrade when I had a Droid Razr Maxx).
Yes, you can safely downgrade in order to take the OTAs.
Yes, your past OTA attempt probably failed because you weren't fully stock in some way. There is an error log stored on your phone that you could have checked for the exact cause. As a general note, OTAs require you to be on stock recovery, but not necessarily Unrooted.
You mention that you are unable to find a stock image file for the JellyBean update. This file is readily available here at XDA, and can be downloaded from the following thread:
http://forum.xda-developers.com/showthread.php?t=1974114
Performing only Step 1 from that thread would leave you with a fully stock, unrooted, locked bootloader JellyBean ROM.
Quick question if anyone knows the answer. I'm running stock VRBLK3 ROM, but loaded older VRLG7 radio via Oden. If a new OTA comes down, what would happen? Would it bail out since radio isn't correct rev? Or is radio fully flashed each OTA so it doesn't matter? Or could something bad happen?
it should be fine as I flashed a blk3 based custom ROM but had the radio from the previous ota( the last from ice cream sandwich). It worked fine but I still flashed the latest radio.
My question was not if radio and ROM have to match. Instead I was asking if I can accept a new future OTA if my ROM is stock/latest, but my radio is down rev?
Scrappy1 said:
My question was not if radio and ROM have to match. Instead I was asking if I can accept a new future OTA if my ROM is stock/latest, but my radio is down rev?
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Click to collapse
No as it will flash the latest radio as well.
Ok, well just as long as nothing bad happens I'm ok with it.
I have been using various Roms based on the stock 4.3 update (cleanROM, alliance, mostly stock). and I have had issues with constant resetting and crashing - I have to pull my battery several times a day. Is this because I am updating the roms but I haven't updated the modem/baseband?
If so, should I just flash the modern in my current install, or do I need to re-flash everything?
ragendem said:
I have been using various Roms based on the stock 4.3 update (cleanROM, alliance, mostly stock). and I have had issues with constant resetting and crashing - I have to pull my battery several times a day. Is this because I am updating the roms but I haven't updated the modem/baseband?
If so, should I just flash the modern in my current install, or do I need to re-flash everything?
Click to expand...
Click to collapse
Are you on a unlocked 4.1.2 bootloader? Or are you on a Locked 4.3 bootloader (Took the 4.3 OTA) and using safestrap? If you took the OTA then your radio is already updated. If you have an unlocked bootloader and just flash the ROM in recovery then you probably haven't updated your radio yet. You can do so if you want. You are looking for the ML1 radio. NOT THE FIRMWARE (very important you do radio only!!!!)
However I do not think the radio is your problem. Has to be an app causing problems. do you use Titanuim Backup to restore apps?
Thank you guys in advance for your help but I just had a few questions. I am running 4.4.2 currently with the stock rom rooted and unlocked bootloader. I have however issued a few Mods such as extreme power saving and built in tether. Can I just load the 4.4.4 firmware and radios, switch back to stock recovery and take the OTA to 4.4.4 without having to wipe anything or since I have used some mods do I now have to wipe my device and put everything back after getting the 4.4.4 update. The reason I ask is I like having the stock features while just using google now launcher on top of sense. Also would any of you have a recommendation on a ROM to achieve this same thing so I dont have to go through this everytime I want to take the newest OTA if it is not possible to take without wiping.
jpgetter said:
Thank you guys in advance for your help but I just had a few questions. I am running 4.4.2 currently with the stock rom rooted and unlocked bootloader. I have however issued a few Mods such as extreme power saving and built in tether. Can I just load the 4.4.4 firmware and radios, switch back to stock recovery and take the OTA to 4.4.4 without having to wipe anything or since I have used some mods do I now have to wipe my device and put everything back after getting the 4.4.4 update. The reason I ask is I like having the stock features while just using google now launcher on top of sense. Also would any of you have a recommendation on a ROM to achieve this same thing so I dont have to go through this everytime I want to take the newest OTA if it is not possible to take without wiping.
Click to expand...
Click to collapse
Flash the ruu here. That will get you to 4.4.3 the easy way and make you 100% stock so you can take the ruu. Then flash twrp and flash su or the rooted Rom of your choosing.
The RUU is one way to go, although I would never update via OTA...
Another would be to flash the firmware and radios from here:
http://forum.xda-developers.com/showthread.php?t=2723159
And then Scott's rooted stock rom from here:
http://forum.xda-developers.com/showthread.php?t=2914922
He usually has them up a few hours after a new OTA has been released. Even better - try his stock, debloated CleanROM once it's out.
This way you can keep your recovery. You can even try to just flash the 4.4.4 firmware and radios and see if it runs your current 4.2 ROM ok. But I would not update the rom from version to version without a wipe.
The setup is the price to pay for getting a new and hopefully better Android version.