This official CM 13 Android 6.0 Marshmallow is only for Nexus 9 LTE (flounder_lte) don't try it on other phones.
• You Phone should be Rooted & have The latest version of a custom recovery (CWM or TWRP) installed on your phone.
•Make sure there is at least 80% battery left on your smartphone before begin this process.
*Disclaimer:
Android Custom ROM fix ® provide various Firmware Updates and Rooting process along with Custom ROM,Modes,file are all belong to their owners/developers. The autor of this site or the developers are not responsible, if you damage or brick your device.Do it on your own risk and follow the instruction properly.
* Important:
Backup important files stored on your device before proceeding with the steps below, so that in case something goes wrong you’ll have backup of all your important files.
÷ How to Update Nexus 9 LTE (flounder_lte) With Official CM13 Nightly Android 6.0 Marshmallow:
1-
Download the CM 13 Nightly Android 6.0 Marshmallow zip &
Google Gapps for Android 6.0 ROMs .
2- Move both zip files on to your phone’s internal storage.
– after the files are copied you can disconnect the phone from computer.
– do not extract the archived contents.Switch off your device.
3- Next, boot it in Custom Recovery Mode.
– that’s a guide for the Nexus 9 LTE (flounder_lte) model, but it should work for Nexus 9 models, too.
– the CWM-based and TWRP Recoveries are supported by this tutorial
4- .First thing that you need to do using the Recovery Mode is to create a NANDROID Backup for the installed ROM:
– CWM: select ‘backup and restore’.
– TWRP: select ‘backup’ option.
– set an easy to remember name for the file and confirm process.
5- Now you can factory reset your device:
– CWM: select ‘wipe data/ factory reset’ option, while for TWRP you should select the ‘Wipe’ options.
– confirm process.Start the CM 13 Android 6.0 Nightly ROM installation:
– CWM: select ‘install zip from sdcard’, then ‘choose zip from sdcard’.
– TWRP: select ‘install’ option.
6- Find the CM 13 Nightly zip and confirm the flashing process.
– don’t press any buttons until all the new firmware files are done installing.
7- When the ROM is done installing you can flash the Gapps zip, too.
– use the same actions as in step 8 to find the Gapps file.
8- Reboot your phone in normal mode after all the files are done installing.
Note that the first boot process of this new custom ROM will take a while before it loads all the new files.