Simple TWRP instructions for flashing ROMs

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@wells

@wells

Senior Member
Feb 3, 2014
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Zagreb, HR
So many posts with errors while flashing custom ROMs and flaming it then. No need.

Always flash latest TWRP found here:

http://techerrata.com/browse/twrp2/hammerhead

To flash recovery use fastboot:

fastboot devices

(some number should appear here)

fastboot flash recovery

Or you can use Flashify or similar if already rooted. But, go ahead and learn to fastboot.

(Thanks to @simms22 for telling me to clarify)

first thing you want to do is backup your EFS partition in twrp and copy it to safe place (aka your computer or some secure cloud) - thanks to @gee2012 for headsup.


So now to the ROM flashing / fun part:

Installing custom ROMS/Gapps packages (thanks to @kufikugel for headsup)

Go to Wipe -> Advanced, format system (as your previous custom ROM/Gapps has most probably added backup scripts in system/addon.d), data, cache & dalvik. reboot recovery. flash new ROM & gapps as you would usually.

Easy? :)

Peace!
 
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simms22

simms22

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lol, you didnt include instructions on how to flash twrp in your instructions post. maybe you should add instructions?
anyways, twrp is flashed via fastboot, not recovery. you can also flash it with the flashify app if you already have root(or the twrp manager app). also, wiping one time is too much. you never ever need to wipe when flashing a recovery.
 
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@wells

@wells

Senior Member
Feb 3, 2014
466
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Zagreb, HR
update: even with 2.7.0.0 you'll most probably run into issues flashing ROM if you format system and don't reboot recovery.. so just do it.
 
gee2012

gee2012

Recognized Contributor
Jul 13, 2010
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@wells said:
I'm well aware I am n00b in your eyes, but still.. so many posts with TWRP 2.6.3.4 errors while flashing custom ROMs and flaming it then. No need.

Always flash latest TWRP found here:

http://techerrata.com/browse/twrp2/hammerhead

To flash recovery use fastboot:

fastboot devices

(some number should appear here)

fastboot flash recovery <filename.img>

Or you can use Flashify or similar if already rooted. But, go ahead and learn to fastboot.

(Thanks to @simms22 for telling me to clarify)

So now to the ROM flashing / fun part:

Don't wipe system as most ROM scripts will do it for you or if you do, unmount system before flashing (or even better just reboot recovery and then flash your custom ROM).

Easy? :)

Also, no need to wipe multiple times anything before custom ROM flashing, it does nothing, just once is enough and just factory reset is usually enough, no need for advanced wipes.

Hope this helps somebody, mods if you think this should go away, just make it go away, not trying to be clever one.

Peace!
Click to expand...
Click to collapse

Maybe its usefull to add/mention the option to backup the EFS folder in TWRP and users should copy it to the PC once they backed it up :)
 
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kufikugel

kufikugel

Senior Member
Aug 12, 2012
3,112
20,039
Well I would prefer when you add the hint that switching ROMs or gapps packages the user should wipe manually system prior the flash.

It is right that every ROM flash will format the system partition. But all ROMs have since long time backup scripts (for gapps and such things). When you flash a ROM it searches for this scripts, all things mentioned in the script will be copied to the data partition.... ROM formats the system partition installs its stuff and restores the copied stuff from data partition back.

Due that every gapps package is slightly different and as well a lot ROMs package own scripts into the addon.d folder this results always in problems. And a factory reset does not wipe this scripts. Only a manual format system.

Sent from my Nexus 5 using Tapatalk
 
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jd1639

jd1639

Inactive Recognized Contributor
Sep 21, 2012
16,833
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Minnesota
I flashed a rom per your instructions and get force closures in play music. What should I do?

Sent from my Nexus 5
 
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  • 5
    @wells
    @wells
    So many posts with errors while flashing custom ROMs and flaming it then. No need.

    Always flash latest TWRP found here:

    http://techerrata.com/browse/twrp2/hammerhead

    To flash recovery use fastboot:

    fastboot devices

    (some number should appear here)

    fastboot flash recovery

    Or you can use Flashify or similar if already rooted. But, go ahead and learn to fastboot.

    (Thanks to @simms22 for telling me to clarify)

    first thing you want to do is backup your EFS partition in twrp and copy it to safe place (aka your computer or some secure cloud) - thanks to @gee2012 for headsup.


    So now to the ROM flashing / fun part:

    Installing custom ROMS/Gapps packages (thanks to @kufikugel for headsup)

    Go to Wipe -> Advanced, format system (as your previous custom ROM/Gapps has most probably added backup scripts in system/addon.d), data, cache & dalvik. reboot recovery. flash new ROM & gapps as you would usually.

    Easy? :)

    Peace!
    View
    1
    simms22
    simms22
    lol, you didnt include instructions on how to flash twrp in your instructions post. maybe you should add instructions?
    anyways, twrp is flashed via fastboot, not recovery. you can also flash it with the flashify app if you already have root(or the twrp manager app). also, wiping one time is too much. you never ever need to wipe when flashing a recovery.
    View
    1
    @wells
    @wells
    simms22 said:
    you mentioned about wiping. wiping is done in recovery.
    Click to expand...
    Click to collapse

    There I fixed it, my post was aimed to post-installing-twrp era. Thanks! :)
    View
    1
    gee2012
    gee2012
    @wells said:
    I'm well aware I am n00b in your eyes, but still.. so many posts with TWRP 2.6.3.4 errors while flashing custom ROMs and flaming it then. No need.

    Always flash latest TWRP found here:

    http://techerrata.com/browse/twrp2/hammerhead

    To flash recovery use fastboot:

    fastboot devices

    (some number should appear here)

    fastboot flash recovery <filename.img>

    Or you can use Flashify or similar if already rooted. But, go ahead and learn to fastboot.

    (Thanks to @simms22 for telling me to clarify)

    So now to the ROM flashing / fun part:

    Don't wipe system as most ROM scripts will do it for you or if you do, unmount system before flashing (or even better just reboot recovery and then flash your custom ROM).

    Easy? :)

    Also, no need to wipe multiple times anything before custom ROM flashing, it does nothing, just once is enough and just factory reset is usually enough, no need for advanced wipes.

    Hope this helps somebody, mods if you think this should go away, just make it go away, not trying to be clever one.

    Peace!
    Click to expand...
    Click to collapse

    Maybe its usefull to add/mention the option to backup the EFS folder in TWRP and users should copy it to the PC once they backed it up :)
    View
    1
    kufikugel
    kufikugel
    Well I would prefer when you add the hint that switching ROMs or gapps packages the user should wipe manually system prior the flash.

    It is right that every ROM flash will format the system partition. But all ROMs have since long time backup scripts (for gapps and such things). When you flash a ROM it searches for this scripts, all things mentioned in the script will be copied to the data partition.... ROM formats the system partition installs its stuff and restores the copied stuff from data partition back.

    Due that every gapps package is slightly different and as well a lot ROMs package own scripts into the addon.d folder this results always in problems. And a factory reset does not wipe this scripts. Only a manual format system.

    Sent from my Nexus 5 using Tapatalk
    View

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