Best way to migrate from one ROM to another - Lenovo P2 Questions & Answers

I have a doubt on how to migrate from one ROM to another ROM while keeping app+data safe?
I tried using titanium backup by creating update.zip and flashed it but the screen gets stuck in twrp saying will boot in 5 seconds and it's stuck there.
I also tried the migrate app developed by XDA member. There was no issue while performing backup but there were Error 7 while restoring.
I want a simple method to backup all my apps and data and easily migrate to another rom.
Can anyone please suggest a method ?

Related

How do you do a nandroid backup with the Desire?

I have a rooted desire and never really tried restoring a backup and when I finally did I came across this error message:
No SD ext found. skipping backup of SD EXT
Generating MD5 sum
error while checking md5 sum!
chcking md5 sum....
MD5 mismatch!
My SD card has no partition whatsoever and I'm using fake flash by paul. My old phone was a N1 and I had no problem whatsoever doing this before. Is making a backup and restoring in the Desire an entirely different process?
Also how do you automatically backup apps in the Market? Meaning if I switch roms and just logged into my Google account the market would automatically "restore" my old apps. I used to be able to do this once in a while with my old N1 but I couldn't do it consistently. With my Desire I can't do it at all.
Thanks
It will give that error if you have no ext partition on your sd card. If you're not using apps 2 sd then you need not worry about it.
Other than that, try the latest clockwork recovery (2.0.1.4) and try a nandroid backup and restore.
Sent from my HTC Desire using XDA App
Nandroid backup seems to work and I do get to see the file but when I try to restore it fails! Do I need to make an extension for it to work?
What about restoring apps from the marketplace via the internet? Like I said, I've done it a few times with my N1 wherein it automatically restores everything once I log in my Google account.
Thanks
Try creating an ext partition, convert ext2 to ext3. If it fails again, try backing up and restoring using the Nand using the latest Clockwork Recovery (2.0.0.7).
Your apps are linked to your Google account so when you sign in, they should be available for manual download.
You could also backup and restore your apps and data to your sd card using Titanium backup or MyBackup Pro (available from the Marketplace).
Sent from my HTC Desire using XDA App
Apps are indeed linked but how do they become restored automatically? Like I said, I've done it before on my N1 with "applications restored" showing up on the notification bar.
Where do I get the latest clockwork recovery? Tried looking at the forums and came up empty. I just followed Paul's guide for rooting. Still don't understand why I can't restore from a nandroid.
thanks
I am not aware of any method to restore apps automatically from the Marketplace, i do it manually unless using a backup and restore app.
Try reading the fake flash thread on MoDaCo as i remember people had reported the same issue you are experiencing. What version of fake flash are you currently using?
You will find the Clockwork Recovery as an option in the ROM Manager app, which you can download from the Marketplace.
Sent from my HTC Desire using XDA App
kingofthebraves said:
Where do I get the latest clockwork recovery? Tried looking at the forums and came up empty. I just followed Paul's guide for rooting. Still don't understand why I can't restore from a nandroid.
Click to expand...
Click to collapse
The easiest method is to use unreEVOked (link).
The earlier version of unreEVOked installed a much earlier version of clockwork recovery, and I found that the nandroid backup didn't work properly - it would seem to backup (albeit too quickly), but you couldn't restore due to the MD5 problem. I think it didn't actually ever complete the backup and generate the MD5s.
Version 2 hopefully fixes that problem - certainly Nandroid backups take a lot longer!
Regards,
Dave
Thanks guys.
Will look into unrevoked and try to get it to work. I'll also try to update my fake flash. I have been using the very first version when it came out and never really updated it lol
Updated my fake flash and it worked! Thanks guys!
Didn't know that the clockwork recovery was embedded into fake flash. I thought it was just an enabler or something.
Thanks again!
If you use unrEVOked you don't need Fake Flash, or vice versa.
Regards,
Dave
Have still yet to try unrevoked, what exactly does it do when I plug it into my desire? Does it make me run Amon Ra's N1 recovery image? No more screen with the red triangle?
kingofthebraves said:
Have still yet to try unrevoked, what exactly does it do when I plug it into my desire? Does it make me run Amon Ra's N1 recovery image? No more screen with the red triangle?
Click to expand...
Click to collapse
No problem bud, glad it worked out for you
When you enter Recovery, it loads the recovery image straight away, so you get a permanent custom recovery image when you hold power + home.
Will try it out thanks again! Currently experimenting with the Rom manager application. It's pretty neat and u can update the recovery image instantly. I take it as something like an app inside ur phone? Always there in the background waiting to be used?
Hi, is anyone else having the problem that ClockWorkMod 2.5.0.1 just hangs after "Backing up system..." when trying to do a Nandroid backup?
Backup worked fine with 2.0.x.x (the one that came with Unrevoked3), but now I can't seem to complete a backup. Haven't even tried restoring yet...
Trying to run a ROM backup using ROM Manager and Nandriod Backup but both go to a screen with a red triangle
Phone is rooted and running Defrost
I want to update to defrost 6.1
Any other way of backing up the ROM ?
Thanks
BorgCymru said:
Trying to run a ROM backup using ROM Manager and Nandriod Backup but both go to a screen with a red triangle
Phone is rooted and running Defrost
I want to update to defrost 6.1
Any other way of backing up the ROM ?
Thanks
Click to expand...
Click to collapse
Boot in to recovery manually and back up or clear the download cache in rom manager and reflash clockworkmod. If it still fails try to disable signature verification in recovery (under install zip form sd)
I can't get to recovery though thats the problem.
How do you reflash clockworkmod ? Through ROM Manager ?
yes, first option when you open rom manager
Cashe cleared, then I tried to run the update ROM option selected back up and clear data etc.
Went straight to a red triangle, will now try and see about changing this clockworkmod
Thanks.
Ran the re-flash clockwork option, first one on the list, still gets the red triangle of noness.

How do I change to a different ROM?

A total noob question but that's because I'm a noob. Anyway I'm currently using CynogenMod7, but I want to try a diffrent ROM. What do I have to do?
All the info you need to do that is here
Okay but would I have to format my SD card or partition it?
How would I keep my old apps and app data?
Thanks
Tajio said:
Okay but would I have to format my SD card or partition it?
How would I keep my old apps and app data?
Thanks
Click to expand...
Click to collapse
You dont need to format SD Card (some ROM's require EXT partition, if you dont have it then you might need to repartition it), to keep apps and app data use Titanium Backup.
Backup apps using Titanium Backup
Backup contacts
Boot into recovery
Perform Nandroid backup
Wipe/factory reset
Install new ROM from zip
Sent from my CM7.1 Desire using XDA Premium App
some basic things before flashing ROMs
Depends on what ROM you're trying to flash. Some ROMs don't require partitioning your SD card. However, ROMs that feature A2SD+, Data2SD, Data2Whatever or Data2Ext will require that you make 2 or 3 partitions. Those 4 scripts are for people who have tons of apps and cannot be served by the stock phone memory.
Safest way to enjoy flashing ROMs is to:
a) save all the stuff in your SD Card onto your computer or another storage device
b) sync all your contacts into a Google account. If you don't have one, make one. You'll find it very convenient to sync back all contacts everytime you flash a new ROM
c) use MyBackup Root or Titanium Backup; they can both save apps for later reinstatement, include settings and data, like your Angry Birds score. Personally, Titanium Backup is much better than MyBackup Root. Go buy the pro version, it works even better.
d) remember to make a Nandroid backup in recovery. Be aware, though, that when you make a Nandroid backup in ClockworkMod and in the future decide to flash Amon_Ra or another recovery, those cannot restore the nandroid backup that CWM did. Amon_Ra nandroid backup can only be restored by Amon_Ra recovery, likewise with other recoveries. So the first step to do after flashing a new recovery is to make another nandroid backup, in case of trouble.
e) remember the golden rule of safe flashing: always wear a condom. Ooops. I meant, wipe data, cache and Dalvik-cache. Many problems with hanging or bootloops can be traced to not doing the 3 wipes.
Alright thanks everyone!
Can somebody post a link how to root desire i have one and is running stock
want change it. Sorry for hijacking the thread as i dint wanted to start a new one for this.
http://forum.xda-developers.com/showthread.php?t=1016084
There's a search feature also
Sent from my CM7.1 Desire using XDA Premium App
noob here too and this is exactly what I was looking for.
first root a few days ago and flashed GingerVillain 2.7 but was wondering how to go about flashing to a new rom (possibly cyanogen 7).
this answered my question.
thanks to all for the thread.
zedmarcus said:
noob here too and this is exactly what I was looking for.
first root a few days ago and flashed GingerVillain 2.7 but was wondering how to go about flashing to a new rom (possibly cyanogen 7).
this answered my question.
thanks to all for the thread.
Click to expand...
Click to collapse
Go into recovery, full wipe/factory reset + dalvik cache wipe and flash new ROM.
When you flash CM7 dont forget to also flash google apps (look in first post)

[Q] A really quick question

Although i went through a lot of threads, i think i am still not sure and would need a noob type simple answer to this:
I have CWM installed and rooted. I performed nandroid backup of the current state of my phone.
Now i want to try all the different ROMS available and i see some are just ROMS and some include Kernels. So if i install ROM and move to another and at the end decide that my current stock ROM is better for me. Will i be able to restore it from the nandroid backup without any issue. Thanks.
Yes, or you could just Odin back to stock. (You could flash the stock rom justblike any other rom)
Sent from my SGH-T989 using XDA App
Thanks, that removes my doubt.
and if you want to go back and forth between different ROMs you can just backup and restore your Nandroid Backup
i've several copies of Nandroid sitting in my SD card, in case i feel like using another ROM for a change
it's great for times when you are trying to fix or troubleshoot a bug, and you wonder if it's a phone hardware problem or software
so by quickly restoring another ROM, you can rule out that problem very fast and efficiently
i'll at the very least always carry a STOCK Tmo/Telus backup, and my in use Backup, and then the next favourite ROM flavour backup

Help, google boot loop, can't flash any roms

Just flashed the new AOKP milestone 2 yesterday. It was working fine until this morning when it spontaneously went into the google logo boot loop. Went into CMR and deleted data/cache, tried to reflash any roms. Starts to flash the rom but quits after giving an "offset xxxxx" error. Reboot gets the boot loop again. Please help.
Hey
Search on here for roms to flash using Odin or adb/fastboot.
Your phone is grand you just need to flash a stock rom using one of the above methods. Then you can re-root and apply your roms again
Good luck!
Yes. As above you need to find stock images and flash in fast boot.
Sent from my Galaxy Nexus using xda premium
Yeah, I just flashed the stock rom using fastboot yesterday. Can't do that on my computer at work. Another thing is that the restore using CWM doesn't seem to work for me. Backs up fine but I get an error at the end of the restore process(forget the exact error right now).
Not looking forward to restoring all my data and apps again for the third time in the past two days. I hate how it's difficult to using Titanium Backup to restore since the internal SD card is erased. I did back up to dropbox, but the restore only restored 6 apps from there. Ugh. Any way to transfer my backup files off the phone in CWM to my computer? Thanks
I use appmanager (team android) for backup. It lets you back up all apps, then you can copy the backup folder onto your computer. Then once you rebuild your phone, install appmanager again and copy over the backup folder. Some roms have the auto restore feature which installs all your apps once you sign into your Google account on the phone. I hate when these things happen, restoring apps is always a pain. Best of luck anyway.

Backup Issues

I have Oneplus 5T on custom ROM cdroid.
before installing
i created two types of backup {app+data}
1. twrp zip using titanium backup pro
2. other one with .ba extension using Skipsoft Android Toolkit.
both of them restoring but i m not seeing any app installed after the backup completed.
Am i doing something wrong.
I always try new ROMs so i get tired of installing apps over again and again.
Is there any way to deal with this.
Use titanium backup but not the zip. Use it normally. Backup app plus data. I switch to oos, custom roms with no problems. Just don't backup system stuff.

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