Originally Posted by Peenoyako
You guys solved this? I've been trying to figure this out too.
Almost no other methods were successful on MIUI 10 Redmi Note 4x (Snapdragon) , which is already bootloader unlocked, rooted condition.
However after updation of
(1) existing TWRP_3.2.1-5_mido was updated with [Mido][Material][Twrp-Treble][3.2.1-10].zip to facilitate wiping
(ii) Total wipe was carried out from above latest twrp (wipe>Advance wipe>selected all like Delvik / ART Cache, System, Vendor, Data, Internal Storage and Cache>swiped to wipe
(now only 2 things left on phone fastboot and recovery
(iii) Installed lineage 15.1 (mido_lineage-15.1-20180807-nightly-mido-signed.zip) and gapps (mido_open_gapps-arm64-8.1-nano-20180812.zip)
rebooted and initial steps of phone setup was completed
Rebooted to TWRP and installed addonsu-15.1-arm64-signed.zip to root it. It may be noted for this type , root to be enabled at developer options.
(iv)LOS Boot image was extracted through TWRP (Backup> select boot > swiped to Backup , it backed up the boot file at TWRP folder on external SD card. The name of file is boot.emmc.win (64MB)
(v) I have renamed the file to boot and type to img (boot.img)
(vi) i have extracted the contents of the above boot.img with the help of Android.Image.Kitchen.v3.4-Win32 [we have to copy the above boot.img (it should should have word boot in the name and img type to be get recognized by the program ) to Android.Image.Kitchen.v3.4-Win32 folder ] on windows 10 pro 64bit
(vii) i have modified the init.rc at "on chrager" , after modification (including existing+added looks like below)
(viii) repacked it with the same windows program Android.Image.Kitchen.v3.4-Win32 , it will be repacked in the same directory with a name" image-new.img "
(xi) Transferred it to the phone and installed it with TWRP (install>install image> select above "image-new.img" >select boot > swiped to install
Now the phone is booting automatically, if charger is connected (success).
But further work is needed to address important / critical situation like the phone is switched off while use (e.g. while talking on phone with some one while walking little away from office or home or excessive use due excessive follow ups, we will keep it on charging but there is some possibility to forget for considerable amount of time. To avoid this, if the phone is boot up in auto after some 2 or 3 % of charge (like iphones) it will be great. Further if some body wants shutdown and charge it (or it can be kept in silence also), simply charger may be connected before shutdown and it should not wake up in auto.
Most of the credit goes to many netgens , it is only the experience sharing without any responsibility since if not understood properly , if not done planned way, carefully, accurately relevant to phone make , model , model no , sub no , sub spec as applicable , within no time data loss and / or phone bricking may happen.