Database Develop

[Q] About Wiping before installing a new ROM

HI,
I want to know before moving to any new Rom in general... what shoupd be cleaned or wiped?
apart from factory reset and wipe cache partition.
Wipe Dalvik cache,
Format Boot
System
data and cache is required??????
and how important is it if i do wipe???
THX

vstrtz said:
HI,
I want to know before moving to any new Rom in general... what shoupd be cleaned or wiped?
apart from factory reset and wipe cache partition.
Wipe Dalvik cache,
Format Boot
System
data and cache is required??????
and how important is it if i do wipe???
THX
Click to expand...
Click to collapse
If you're installing a new rom, ALWAYS do da factory reset, wipe dalvik cache and cache partition!
On the other hand, if you only want to install an "update" (new version) of the SAME ROM you already installed (MIUI for example), you don't need to do factory reset, wipe cache and dalvik cache is enough, copy and flash the updated rom and enjoy in the new version with all your data/apps/messages etc. there!

ChaosLord88 said:
If you're installing a new rom, ALWAYS do da factory reset, wipe dalvik cache and cache partition!
On the other hand, if you only want to install an "update" (new version) of the SAME ROM you already installed (MIUI for example), you don't need to do factory reset, wipe cache and dalvik cache is enough, copy and flash the updated rom and enjoy in the new version with all your data/apps/messages etc. there!
Click to expand...
Click to collapse
can u tell me what is stored in Dalvik cache?

if you're on stock roms, then going to cm/miui, do this:
go Recovery
-wipe dalvik cache
-wipe cache
-wipe data
-install the rom
-then it will reboot automatically(or after installation, reboot) then it will bootloop
-remove battery and put it back in, then do 3 button combo (recovery mode)
then install the rom again,
-optionally install kernels, etc
-reboot.
or if you're coming from a same rom, but new version, you don't have to wipe, just install the new version of rom.

I would recommend to never format boot, if not done correctly it may brick your phone.
Read about it here:
http://www.addictivetips.com/mobile...-and-how-to-use-it-on-android-complete-guide/
Clause 7.B

Hi, I'm using nitrogen OS on my Redmi note 3. It got updated to 8.1.0(Oreo) through flashing from 8.0.0(Oreo). While doing so I didn't clear the necessary cache like dalvik, system in TWRP. Is it necessary to clear the cache in TWRP while upgrading in the android version?(Though I'm using same AOSP based nitrogen os for 8.0.0 & 8.1.0)

[Q] Difference between Factory Data Reset vs CWM Wipe

What's the difference between doing a Factory Data Reset and doing a wipe using CWM.
I'recently rooted my Note and now have CWM installed.
I plan on trying a few different ROMs (both newer stock ROMs and eventually custom ROMs) and read in most instances to per a wipe before upgrading.
I was wondering which wipe to use.
Also, if I install Titanium Backup, will it save everything including Contacts, Network settings, icon layouts, webpage favorites, appa and everything else?
Thanks

jeffs99 said:
What's the difference between doing a Factory Data Reset and doing a wipe using CWM.
I'recently rooted my Note and now have CWM installed.
I plan on trying a few different ROMs (both newer stock ROMs and eventually custom ROMs) and read in most instances to per a wipe before upgrading.
I was wondering which wipe to use.
Also, if I install Titanium Backup, will it save everything including Contacts, Network settings, icon layouts, webpage favorites, appa and everything else?
Thanks
Click to expand...
Click to collapse
Cant say surely about the difference between factory rest of data and CWM wipe. But can surely say to flash any rom you need to CWM wipe all the data and cache and dalvik cache from the recovery.
And Titanium Backup is for backing up and restoring all your apps and their associated data and market links. It doesn't backup contact (should auto backup to your google account or use any contact and sms backing app from market like - https://play.google.com/store/apps/details?id=com.idea.backup.smscontacts&feature=search_result) or
layouts . Icon layouts you can save by going to the backup settings of the launcher you are using and favorites you can again backup on your sd card.
Hit thanks if it helped

CWM recovery wipe cache, is just wiping cache files not data
while CWM recovery wipe data n Hard reset from setting - privacy - erase data(factory reset) is same
CWM function is useful when you unable to boot device normally.

Where is dalvik cache located ? Because if it's in the data or cache partition, then I don't see why I have to wipe dalvik cache after wiping data/cache...

Latoc said:
Where is dalvik cache located ? Because if it's in the data or cache partition, then I don't see why I have to wipe dalvik cache after wiping data/cache...
Click to expand...
Click to collapse
System apps' dalvik-cache in /cache
Data apps' dalvik-cache in /data
Hence just by clearing the cache you clean the /cache space of system apps and not the dalvik cache of data apps.
So you require to do both - clean cache and clean dalvik cache.
Hit thanks if it helped!

Factory Reset will change your Android ID. Some apps with custom DRM may stop working. Factory Reset is also incompatible with some ROMs and causes some apps/files installed by CWM flashable ROMs to disappear.

I think both are same. Both format data and cache partition.
(that is why devs warned not to perform FDR on affected kernels)
With FDR you initialise the command from booted phone.
CWM Wipe is what you do from recovery mode.

dr.ketan said:
CWM recovery wipe cache, is just wiping cache files not data
while CWM recovery wipe data n Hard reset from setting - privacy - erase data(factory reset) is same
CWM function is useful when you unable to boot device normally.
Click to expand...
Click to collapse
thanks for this explanation!

[Q] formatting internal memory

hello everyone,
i tried to google but didn't manage to find a way to format the internal memory of my Milestone. is it possible to do this?
i currently reverted to stock rom from Cyanogen7 and i'm trying to clear everything and reflash cyanogen/stock. i tried to do factory reset from recovery but it only delete user data.

From OR (Fufu)
Wipe Menu
If you want to clear everything.
wipe Dalvik cache,
wipe cache,
wipe data / Factory reset
wipe Ext - partition if you have one.

For access internal memory just for rooted phone, but for u come back to stock ( http://forum.xda-developers.com/showthread.php?t=696845 ) rom u need flash a device. If u want a install CM ( http://forum.xda-developers.com/showthread.php?t=941346 ) , u need run update, this script do evertihng! If you have apps in a ext partition, u need format this partition, "wipe ext".

[Q] Wipes and formats

One question, maybe noob ...
When we made flash a new rom from recovery, we made the wipes;
- Wipe cache
- Wipe Dalvik
- Wipe data / factory reset
But
I notice that when you make the wipe all data / factory reset, the system partition is not formatted, it influences the functioning of the new rom?
For sure, I always do the formats in "mount and storage".
- Format cache
- Format data
- Format system
Thank you! Hugs! :silly:

genarinho said:
One question, maybe noob ...
When we made flash a new rom from recovery, we made the wipes;
- Wipe cache
- Wipe Dalvik
- Wipe data / factory reset
But
I notice that when you make the wipe all data / factory reset, the system partition is not formatted, it influences the functioning of the new rom?
For sure, I always do the formats in "mount and storage".
- Format cache
- Format data
- Format system
Thank you! Hugs! :silly:
Click to expand...
Click to collapse
I only
- Wipe Dalvik
- Wipe data / factory reset
I thought when I do wipe data, then I delete the cache.
Sometimes I wipe SD for delete cache & thash of deleted apps.

nkabakov said:
I only
- Wipe Dalvik
- Wipe data / factory reset
I thought when I do wipe data, then I delete the cache.
Sometimes I wipe SD for delete cache & thash of deleted apps.
Click to expand...
Click to collapse
Ok.
And the system partition?
When you wipe data / factory reset, the system partition is not formatted.
As I know the main files are in the system partition.
Ty for support.:laugh:

installing RC1 using rom manager over original ROM

When installing CM 10.1 RC1 using rom manager over original ROM.
Do I need to clear some partitions manually or does rom manager do all for me?

DavidXanatos said:
When installing CM 10.1 RC1 using rom manager over original ROM.
Do I need to clear some partitions manually or does rom manager do all for me?
Click to expand...
Click to collapse
For eliminating causes for some problems that may be appear is recommended to do:
- wipe data/factory reset
- wipe cache partition
- wipe dalvick cache
- format system
Doing that, you have a clear fresh device for installing new software.

gtdaniel said:
For eliminating causes for some problems that may be appear is recommended to do:
- wipe data/factory reset
- wipe cache partition
- wipe dalvick cache
- format system
Doing that, you have a clear fresh device for installing new software.
Click to expand...
Click to collapse
shouldn't this be done by rom manager automatically?