Marc Vidal De Palol mvidaldp

Use a Windows installation media and boot it
Go to: Repair your computer > Troubleshoot > Advanced options > Startup Repair
If it fails (like most of cases), go to: Repair your computer > Troubleshoot > Advanced options > Command Prompt
There first run: diskpart
Then run: list vol
Select the Windows hidden partition: select volume X (where X is the number of the partition)
Assign it a letter: assign letter=Y (make sure you assign an unused one)
Exit diskpart, run: exit
Run: bootrec /rebuildbcd
Given that your Windows partition has the letter C: assigned, run: bcdboot c:\windows /s c:

I wrote this short tutorial because extending my internal storage using my new micro SD card on my Retroid Pocket 2+ failed all the time. Only setting it up as portable/external worked. However, this instructions should work in any Android 5.0+ device.

So, in case you have problems setting up your SD card on your Android device via graphical interface (setting up storage as extended internal memory or portable), and you get a corrupted SD card or any other error, follow these steps to fix it via adb shell:

Make sure you have adb access to your Android device: Settings > System > About, touch/click on Build number until Developer options are enabled:
Go to Settings > System > Developer options and enable USB debugging.
Assuming you have adb installed on your remote terminal run the following:

adb shell

	# See this wiki page for more info:
	# https://github.com/dylanaraps/neofetch/wiki/Customizing-Info
	print_info() {
	info "$(color 10)" title
	prin "$(color 12)───────────── $(color 1)Hardware$(color 12) ────────────"
	info "$(color 1)" model
	info "$(color 1)󰍛" cpu
	info "$(color 1)󰍹" gpu
	# info "$(color 1)CPU Usage" cpu_usage
	info "$(color 1)" gpu_driver # Linux/macOS only

	# Assuming you are in your desired Python environment, just run:
	pip freeze --local \| grep = > requirements.txt
	# "grep =" ensures it will only list packages and versions
	# Then, for restoring the packages, just run "pip install -r requirements.txt"

	# Gentoo's modification of /etc/bash/bashrc
	#
	# This file is sourced by all interactive bash shells on startup,
	# including some apparently interactive shells such as scp and rcp
	# that can't tolerate any output. So make sure this doesn't display
	# anything or bad things will happen !


	# Test for an interactive shell. There is no need to set anything
	# past this point for scp and rcp, and it's important to refrain from

	# import the new connection using the vpn config file you have
	sudo nmcli connection import type openvpn file config-file.ovpn

	# rename an old/current connection:
	sudo nmcli connection modify connectionId connection.id differentConnectionId

	# rename the new imported connection
	sudo nmcli connection modify config-file connection.id newConnectionId
	sudo nmcli connection modify newConnectionId connection.interface-name newConnectionName

	{ eval "${ssh-agent}"; ssh-add .ssh/mykey; } &>/dev/null
	# so -> { eval "${command1}"; command2; } &>/dev/null
	# very useful for hiding .bashrc and .zshrc output
	# source: https://unix.stackexchange.com/a/73607

	# if you do not know your app id you can find it using: adb shell pm list packages -f`
	adb shell appops set --uid your.app.id MANAGE_EXTERNAL_STORAGE allow

	! This is a comment
	\|\|api.coingecko.com^