Redmi 4X stuck at boot loop

Question

I removed some apps from my non-rooted Redmi 4X device with 'adb shell' because it was becoming very slow and unresponsive even for basic tasks. The packages I removed following this tutorial are:

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.glgm



Success

santoni:/ $ pm uninstall -k --user 0 com.google.android.music



Success

santoni:/ $ pm uninstall -k --user 0 com.google.android.videos

  

Success

santoni:/ $ pm uninstall -k --user 0 com.android.email

 

Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.account



Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.mi_connect_service

 

Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.payment



Success

santoni:/ $ pm uninstall -k --user 0 com.mipay.wallet.id

  

Success

santoni:/ $ pm uninstall -k --user 0 com.mipay.wallet.in

  

Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.mirecycle

 

Success

santoni:/ $ pm uninstall -k --user 0 com.miui.videoplayer

 

Success

santoni:/ $ pm uninstall -k --user 0 com.miui.cloudsync



Failure [not installed for 0]

santoni:/ $ pm uninstall -k --user 0 com.miui.player



Success

santoni:/ $ pm uninstall -k --user 0 com.miui.micloudsync

 

Success

santoni:/ $ pm uninstall -k --user 0 com.google.android.apps.photos



Success

santoni:/ $ pm uninstall -k --user 0 com.miui.hybrid



Success

santoni:/ $ pm uninstall -k --user 0 com.miui.screenrecorder

 

Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.scanner



Success

santoni:/ $ pm uninstall -k --user 0 com.miui.securitycenter

 

Success

santoni:/ $ pm uninstall -k --user 0 com.xiaomi.midrop

 

Success

santoni:/ $ pm uninstall -k --user 0 com.android.thememanager



Success

santoni:/ $ pm uninstall -k --user 0 com.miui.weather2

 

Success

santoni:/ $ pm uninstall -k --user 0 com.miui.yellowpage

  

Success

santoni:/ $

After I try to reboot, it is now stuck in a boot loop. How do I rectify this?
I use Arch Linux so please don't suggest any Windows-only tools that are
not available for Linux.

This phone is close to 4 years old and its battery is quite swollen, hence the screen too has come loose. Other forum threads suggest that it might be a battery issue however I would like to first try out anything I can do to revive this phone.

This is my first question on any stack exchange site so please forgive any errors and give me suggestions on how I can improve.

— linux_enthusiast | Sources

Answer

Removing com.miui.securitycenter was the cause of the bootloop.

As described in this article the reason for a boot loop is corrupted software/corrupted ROM

Not really. Nothing was corrupted. You just removed a system app needed for boot. I agree this package shouldn't be a boot dependency but this unfortunately is the case.

Honestly, with a Xiaomi Redmi 4X, you'd better install an AOSP ROM. Xiaomi doesn't provide security updates anymore.

I suggest you to either install the official LineageOS version (Android 9) or the official crDroid ROM (Android 11)

In general, if you can unlock the bootloader of your phone, go for a custom ROM. If you can't, use the Universal Android Debloater. The nice thing about this debloater is that the packages are documented so you can see what you can delete or not.

— Rand0mMan | Sources

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