29 minutes ago, Excalibur20 said:
Alright thanks so much. Last question, where would you find those apps and tools, are they listed on the app store or are they an apk download?
OnePlus Unbrick Tool / Factory Tool: https://forum.xda-developers.com/oneplus-7-pro/how-to/guide-mega-unbrick-guide-hard-bricked-t3934659
OnePlus Diagnostics App: https://www.apkmirror.com/apk/oneplus-ltd/oneplus-diagnostic/
Some information about these tools:
Despite the factory tool being referred to as an "Unbrick Tool", it's the same piece of software you see in this video:
(Timestamped @ 8:18)
Phones, when assembled do not have any software installed (besides Qualcomm's Emergency DownLoad Mode, which this tool utilizes to flash things), so the manufacturer must flash Android themselves, somewhere along the lines, this tool got leaked and people have been using it to truly "factory reset" their phones to a more extensive degree as opposed to factory resetting through the "Settings" app. The reason it is called an Unbrick Tool is because it is way more commonly used as a tool that can recover the device from any issues that occurred while tinkering with the phone (e.g. rooting, installing custom ROMs, installing custom kernels, etc.) as long as the device turns on, this tool can recover it. Please note, this tool will flash a very old version of OxygenOS, you can update manually after the device has booted.
The OnePlus Diagnostic App behaves a bit more differently compared to apps like AccuBattery because OnePlus, as the manufacturer, knows what directories to look in to check for battery states and what not, this app not only checks battery health, but can also check temperatures, help you check for dead pixels, and run you through tasks that insure you have a fully functional device.