When you change from stock to the first custom ROM, you 'usually' do a nandroid backup before patching the ROM.
If you decide to restore that stock backup, will you lose root on your phone?
US Cellular has been promising Froyo for the CDMA Desire since October, and I'm tired of waiting so I'm going to root it and flash a Froyo ROM myself. I read through the unrEVOked documentation, and it mentions that if I want to install official updates in the future I need to restore the recovery image, but it doesn't tell me how to get it. How do I pull the stock recovery image from my phone so that I can flash it back on should I need to?
You can't actually backup a whole rom without rooting first. You need the custom recovery to do a nandroid backup which will back up the whole rom. If anything does go wrong or you need to reinstall then you can just use an RUU to do it. US Cellular doesn't have an RUU yet but you can use other CDMA RUU's.
So am I to understand that there is no way to back up the stock recovery, as I would have to overwrite the existing recovery just to do backups in the first place?
Yep, root access is needed to back the whole ROM up
To be honest, it's better with root anyway and a lot better when you install a custom rom.... from my experience anyway.
OK guys, I just want some clear answers on this. I've done a bit of forum searching but not entirely sure.
As I understand it, I can:
1: Unlock a branded vodafone UK phone with HTCdev.com
2: In doing this, it will 'delete' the CID.
3: Download the most recent stock unbranded OTA file from the forums.
4: Run the OTA instructions through computer installation.
Note: This should work as the CID is deleted?
5: Once this is done, I have suddenly have a stock official rom?
6: What would now happen when the next official OTA is due?
7: What rom would boot if I then did a full factory reset?
8: Because I did all of this with S ON, I can't go back to voda crapware so my warranty is basically void?
If any of you could give me clarity on the questions and above points, that would be awesome.
You can't bebranded without Super CID - having no CID means no update will run
OTA updates have the pre-requisite version in the name, e.g.
OTA_ENDEAVOR_U_ICS_40_HTC_Europe_1.28.401.9-1.26.401.2_release_256505w0tk6eiq8g74y4vb.zip
This means you HAVE to be on 1.26.401.2 to update to 1.28.401.9
To debrand you need to flash an unbranded RUU, which you cannot do at this time. All you can do is flash a 'stock' custom ROM
In that case, are there any stock 'custom' roms out there that can:
1: be reverted back to bloatware stock rom for warranty purposes
2: if and when official stock OTA are available, they can be downloaded and installed on top of the stock custom rom?
EmperorK said:
In that case, are there any stock 'custom' roms out there that can:
1: be reverted back to bloatware stock rom for warranty purposes
2: if and when official stock OTA are available, they can be downloaded and installed on top of the stock custom rom?
Click to expand...
Click to collapse
The closest custom ROM to stock is the Android Revolution HD ROMs. If you do a nandroid backup as soon as you flash the custom recovery you can easily go back to stock by restoring your backup and flashing the stock recovery and then re-locking the phone.
How do I do a nandroid backup? I take it the backup is stored on my computer or something?
When you say custom recovery, do you mean the custom rom?
And lastly, when official OTA updates are released and the maker of arhd is kind enough to implement the changes into their rom, can this be installed as an update or does it require wiping the phone and installing a new arhd rom all over again?
Ps guys, thanks for all the help so far. I'm slowly starting to understand...
EmperorK said:
How do I do a nandroid backup? I take it the backup is stored on my computer or something?
When you say custom recovery, do you mean the custom rom?
And lastly, when official OTA updates are released and the maker of arhd is kind enough to implement the changes into their rom, can this be installed as an update or does it require wiping the phone and installing a new arhd rom all over again?
Ps guys, thanks for all the help so far. I'm slowly starting to understand...
Click to expand...
Click to collapse
A nandroid backup is the backup you make when you root your phone and flash a custom recovery on it.
A custom recovery is not a custom ROM. A custom recovery is like a ms dos program for your phone. It is used to flash a custom ROM or backup your ROM (nandroid backup)
The latest ARHD ROM is based on the latest 1.28.401 base so all the updates and tweaks on the 1.28.401 is already there but optimized more.
EmperorK said:
How do I do a nandroid backup? I take it the backup is stored on my computer or something?
When you say custom recovery, do you mean the custom rom?
And lastly, when official OTA updates are released and the maker of arhd is kind enough to implement the changes into their rom, can this be installed as an update or does it require wiping the phone and installing a new arhd rom all over again?
Ps guys, thanks for all the help so far. I'm slowly starting to understand...
Click to expand...
Click to collapse
Nandroid backup: A backup taken from ClockworkMod recovery using the UI on the phone. The backup is saved on the sdcard. It's good practice to keep a backup of it on the computer as well.
Custom recovery: The recovery is not the same as the "ROM". The recovery is a small partition on the device that you can boot into. From the recovery you can make changes to the main system, "ROM".
Updates: When updates are issued you should never use the OTA update. It may cause alot of problems. ROM builders/chefs are usually very quick to fetch an OTA update and implement it in their ROM so one usually ends up with the update quicker then if one would have waited for the OTA. When installing a smaller update, a wipe is often not required. It is always recommended to take new nandroid backups before installing updates though in case something goes wrong.
Stock ROM is here
Once my device has been rooted and I installed any custom rom and need to go back to stock for future OTA .
I have a Nandroid backup done with TWRP
Could I restore my Nandroid backup and flash stock recovery and I'm all set for any future OTA ?
Hello. I am wanting to OTA, but am not s-off yet. Unlocked bootloader with TWRP and s-on.
My question is, can I do a nandroid backup in TWRP, then install the latest OTA to try it out, then go back to that nandroid backup if I am unhappy with the OTA update?
My goal here is to try out the "wifi calling" feature sprint has implemented in the new OTA update.
Alternatively, is there any way for me to "install" the wifi calling feature on my current stock rom without OTA updating?
first you cant OTA with a custom recovery you need to go to stock recovery but if you did a nandroid flashed stock recovery then did the OTA then back to TWRP yes you can go back. the only issues i see is firmware and kernel. when you OTA you will get a new firmware update along with a new hboot that might cause some issues going backward, also the kernel may not be compatible as well with the old stuff. Being S-On from my understanding you cant flash a kernel in recovery.