Does wiping /system make any sense? - Xiaomi Redmi Note 3 Questions & Answers

Does any rom needs system to be wiped?
I mean does system wiping even makes sense when 'system image is patched unconditionally' according to twrp live log?
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System Partition

What is a system partion. I'm new to Android and wanna install the cm9 alpha,. But it requires a 210mb partition, what is it? And how can I achieve it?
Sent from my ZTE Blade with cm7.1 using xda premium
stkfigure said:
What is a system partion. I'm new to Android and wanna install the cm9 alpha,. But it requires a 210mb partition, what is it? And how can I achieve it?
Sent from my ZTE Blade with cm7.1 using xda premium
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Click to collapse
Basically, it's the area where all the system files are stored;See here: http://www.addictivetips.com/mobile...plained-boot-system-recovery-data-cache-misc/. There's nothing to "achieve". All you should need to do is do a full wipe from recovery and flash the rom (make sure you create a nandroid backup first and clear dalvik cache after).

[Rom] How to update and not lose any data?

First of all sorry for my bad language
I've a Lg 2x (Aka Optimus Dual) temasek's UNOFFICIAL BUILD, now i saw an update from temasek. I'm asking how i can install the new room file as a simple update without losing any app/contact etc.
Well if it's possible what's the correct way to do an update of a custom Rom ?
Very thanks,
Sorry for the question but i've googled and nothing, also searched here but nothing
if its a update of the same build jus erase cache and dalvik cache and install the rom. then ur data remains untouched. but if the rom is different u need to full wipe. data will be lost. but u can sync contacts to gmail and retrieve back any time.
Sent from my Nexus One using Tapatalk
n1newbie said:
if its a update of the same build jus erase cache and dalvik cache and install the rom. then ur data remains untouched. but if the rom is different u need to full wipe. data will be lost. but u can sync contacts to gmail and retrieve back any time.
Sent from my Nexus One using Tapatalk
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Click to collapse
What does errase cache and dalvik cache do? Does the settings stay the same or do you have to set them again when you update? If it delets settings...can you update without errasing cache?
Nope...clearing cache and dalvik cache only wipes unimportant info...your settings will be there as long as you don't press factory reset...
Sent from my GT-S5830 using xda premium
Ryuinferno said:
Nope...clearing cache and dalvik cache only wipes unimportant info...your settings will be there as long as you don't press factory reset...
Sent from my GT-S5830 using xda premium
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Click to collapse
exactly. but look for the requirements for the update. sometimes even updates may require data wipe if the dev states it.
Sent from my Nexus One using Tapatalk
All the above is good and true. I'd like to add that I always make a ROM backup with ROM Manager before I update my ROM. That way, if something should go wrong, I can get back to where I was before the update.
topcat0 said:
All the above is good and true. I'd like to add that I always make a ROM backup with ROM Manager before I update my ROM. That way, if something should go wrong, I can get back to where I was before the update.
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Click to collapse
Not recommended to Samsung Galaxy Ace this ROM Manager because it bricks your device!
kras0 said:
Not recommended to Samsung Galaxy Ace this ROM Manager because it bricks your device!
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Click to collapse
backup wid ur recovery. its always recommended before doing anything.
Sent from my Nexus One using Tapatalk
Dude you could just install Titanium Backup from the play store and back up all the apps and data you want to. And yeah, your device needs to be rooted. Cheers.

Cleared data partition, but can't USB to install new OS

So after some bootloops yesterday and freezing occurring when I tried to wipe Data partition, I flashed stock retail recovery, via the Unroot method. I was then able to wipe the data, cache and dalvik cache partitions, but the sdcard-ext is now empty as well.
I am left with no Android OS, and no way to move a ZIP onto the storage of the tablet. Can someone help me?
Are you able to get into download mode?
Sent from my GT-N7000 using Tapatalk 2
RavenY2K3 said:
Are you able to get into download mode?
Sent from my GT-N7000 using Tapatalk 2
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Yes, I am able to get to Download Mode, but the images that I have seen only overwrite the Recovery Partitions. I am trying to install a new OS using recovery. Are there images that I can install through ODIN that include a new OS?
Yeah, loads?
www.sammobile.com/firmware/?page=3&t=3&o=1&m=GT-P7500&r=1#regiona
The links can sometimes get a bit funny, so you may have to browse the link tree again.
Also you've not started which version it is (not that it matters really) just make sure you choose the right selection for your Tab.
Sent from my GT-N7000 using Tapatalk 2
This should point you in the right direction:
http://forum.xda-developers.com/showthread.php?t=1700993&highlight=adb+push

[HELP]{Q} Preload Partition on AOKP Roms

Hi
Should AOKP or CM roms have the preload partition. I am using rootbox and i have a preload partition on 500mb which is not being used. The folders are empty also i cannot delete them. I think it is wasting space or am i wrong. i seem to be running out of space now and then. Should the partition be there. If so why is it empty and not being used and occupying 500mb..If it is not needed how can i delete it.
Thanks
Also using rootbox, I have the preload folder but there's nothing in it. Did you come onto rootbox from the stock (or stock based) ROM? If you did, I'm assuming you didn't wipe the preload folder?
There may be a better way to do this, if anyone has one please shout out. Otherwise:
Flash a stock ROM (using mobile Odin pro you can root it on the fly).
Flash philz kernel. From philz recovery, wipe data, dalvik cache, cache, and format /preload and /system. Immediately after doing that, flash rootbox again.
Sent from a galaxy far, far away
Hopper8 said:
Also using rootbox, I have the preload folder but there's nothing in it. Did you come onto rootbox from the stock (or stock based) ROM? If you did, I'm assuming you didn't wipe the preload folder?
There may be a better way to do this, if anyone has one please shout out. Otherwise:
Flash a stock ROM (using mobile Odin pro you can root it on the fly).
Flash philz kernel. From philz recovery, wipe data, dalvik cache, cache, and format /preload and /system. Immediately after doing that, flash rootbox again.
Sent from a galaxy far, far away
Click to expand...
Click to collapse
what is the size of your preload folder/partition .. i use partition manager and it tell me its 500mb .. and its not getting used..if i uses philz kernel wont it create the preload partition again ??
Mine says 0bytes. Yes philz/stock will create the preload folder again, but will allow you to wipe it before the flash. I don't know how to wipe it from rootbox.
Sent from my GT-P7510 using Tapatalk 4 Beta
Attached screenshot....using partition table...are u able to provide urs using same app.
Rhx
Sent from my GT-I9100 using Tapatalk 2
Hopper8 said:
Mine says 0bytes. Yes philz/stock will create the preload folder again, but will allow you to wipe it before the flash. I don't know how to wipe it from rootbox.
Sent from my GT-P7510 using Tapatalk 4 Beta
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Click to collapse
see post above .. thx
Mine looks the same in the same app, no need for me to post mine. I just interpreted it that it was saying that I wasn't using the space, as it's only 8 MB. I didn't see it as a problem
Sent from my GT-P7510 using Tapatalk 4 Beta
Hopper8 said:
Mine looks the same in the same app, no need for me to post mine. I just interpreted it that it was saying that I wasn't using the space, as it's only 8 MB. I didn't see it as a problem
Sent from my GT-P7510 using Tapatalk 4 Beta
Click to expand...
Click to collapse
ok ..thx

MWD59 stock system, boot, and recovery (newest firmware as of 06/22/16)

Hello,
After much time and effort I was able to restore my watch to stock to get the newest OTA. Here is everything for those of you who have TWRP and are rooted, so you don't have to bother restoring to stock just to re-root and replace the recovery!
https://drive.google.com/open?id=0B1My3ELWb01vM29HbTZvQ3ZaTU0
Thanks to other users and posts who helped point me in the right direction to get this. Pulling the stock recovery was the hardest part for a n00b like me!!
slothdabski said:
Hello,
After much time and effort I was able to restore my watch to stock to get the newest OTA. Here is everything for those of you who have TWRP and are rooted, so you don't have to bother restoring to stock just to re-root and replace the recovery!
https://drive.google.com/open?id=0B1My3ELWb01vM29HbTZvQ3ZaTU0
Thanks to other users and posts who helped point me in the right direction to get this. Pulling the stock recovery was the hardest part for a n00b like me!!
Click to expand...
Click to collapse
Thanks :good:
did you read this post to pull the stock recovery?
Yeah but I wasn't knowledgeable enough to figure it out from that post, I had to Google for a most basic step by step lol. But that post got me started!
Sent from my Nexus 6 using Tapatalk
is this for big zenwatch 2?
Yes :good:
Sent from my ASUS_T00F using XDA-Developers mobile app
Nice post :laugh:
r0tati0n said:
is this for big zenwatch 2?
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Click to collapse
Yes, big zenwatch 2 with speaker
Sent from my Nexus 6 using Tapatalk
Can you please help me with the installation process?
instantdetox said:
Can you please help me with the installation process?
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Click to collapse
Do you have twrp on your watch or know how to sideload it?
Sent from my Nexus 6 using Tapatalk
slothdabski said:
Do you have twrp on your watch or know how to sideload it?
Sent from my Nexus 6 using Tapatalk
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Click to collapse
I want to know how to sideload it.
This thread is for people with twrp who can't take the OTA.
Sent from my Nexus 6 using Tapatalk
instantdetox said:
I want to know how to sideload it.
Click to expand...
Click to collapse
Find the OTA link in another thread and download it. The using adb issue the command:
adb sideload (location of OTA zip)
While in the stock recovery
Sent from my Nexus 6 using Tapatalk
slothdabski said:
Do you have twrp on your watch or know how to sideload it?
Sent from my Nexus 6 using Tapatalk
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Click to collapse
I also don't know how to update the system using your images. I know how to sideload and I also have twrp working. Never flashed an img to a wearable so if you don't mind explain how to would be great.
metuskale said:
I also don't know how to update the system using your images. I know how to sideload and I also have twrp working. Never flashed an img to a wearable so if you don't mind explain how to would be great.
Click to expand...
Click to collapse
You flash the stock recovery using fastboot.
Fastboot flash recovery /location/of/stock_recovery.img
This isn't necessary unless you want stock recovery flashed or to be able to take future official OTAs directly from Google/asus
The system and boot are in twrpon backup format. Make a small backup on your watch of the cache partition, just so the twrp backuo folder gets created (which is unique to your device). Then adb push the folder you downloaded from this thread (with the build number and date I backed it up, not the parent folder that contains the stock recovery) to /sdcard/TWRP/<your_serial_number>/
Then, on your watch, use to to restore the system and boot. Wipe the cache on your watch and restart. You will not be updated without have to factory reset/wiping data partition.
If you try to flash stock recovery and get error BC your bootloader is locked. You will have to wipe data partition when you unlock bootloader by issuing command
fastboot oem unlock
Please let me know if you have any other questions
Sent from my Nexus 6 using Tapatalk
metuskale said:
I also don't know how to update the system using your images. I know how to sideload and I also have twrp working. Never flashed an img to a wearable so if you don't mind explain how to would be great.
Click to expand...
Click to collapse
Download the files, place them in the TWRP/Backups/(RandomHASH) directory using the directory name he has in his Drive folder, remount System RW (that one threw me off for a few), then run a TWRP restore. You don't have to sideload anything, since TWRP will let you see the watch as a drive (at least under WIN7, haven't tried anything else).
---------- Post added at 07:23 AM ---------- Previous post was at 07:06 AM ----------
I'm glad you were able to pull this.
I woke up this morning to find my watch sitting in TWRP because it had tried to update. I just flashed this, and so far, so good.
Fair warning to everyone: TWRP will restore the boot in the recovery, even if you tell it not to(TWRP bug?)! If you use a different kernel just reflash it after you restore this backup.
do i just put everything on a folder named 2016-06-22--20-06-49_mwd59 and then just flash via twrp?
Jairsantana said:
do i just put everything on a folder named 2016-06-22--20-06-49_mwd59 and then just flash via twrp?
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Click to collapse
You have to make a twrp backup just so a backup folder with your unique hash has been created (just backup cache partition to do this). Then push the 2016-06-22--20-06-49_mwd59 folder into /sdcard/TWRP//
(You'll see a similarly named folder in that directory from the backup you did yourself)
Then use the restore function of twrp to restore the system and boot from the backup folder you got from this thread.
Then wipe your cache partition and you should be good to go!
Sent from my Nexus 6 using Tapatalk
I can confirm that this steps are working:
Backup anything from TWRP (just to create the folder).
Inside the newly created folder (sdcard/TWRP/BACKUP/XXXXXXXXXXXXX --> XXXXXXX folder is one created by TWRP ) place the folder from Drive (the folder itself, no need to change the name).
Then from TWRP perform a Restore and select the one with the name from Drive.
Also note that I lose root, and dunno how to recover it. With this update UI is way faster and connects to BT and WIFI better too.
metuskale said:
I can confirm that this steps are working:
Backup anything from TWRP (just to create the folder).
Inside the newly created folder (sdcard/TWRP/BACKUP/XXXXXXXXXXXXX --> XXXXXXX folder is one created by TWRP ) place the folder from Drive (the folder itself, no need to change the name).
Then from TWRP perform a Restore and select the one with the name from Drive.
Also note that I lose root, and dunno how to recover it. With this update UI is way faster and connects to BT and WIFI better too.
Click to expand...
Click to collapse
You'll have to reflash SuperSU wear BC its overwritten when your restore the boot partition. Busybox will also have to be reinstalled if you need it BC that is overwritten when you restore the system partition
Sent from my Nexus 6 using Tapatalk
I forgot to restore boot, now my battery life is being sucked dry! I'm guessing it's stock recovery, though, even though I unticked that option. Someone in here said it was a bug in TWRP. So I guess I could just fastboot flash twrp, then push the zip and flash it?
Sent from Toastmade 6P using TAPATAPA

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