Yonatan Bitton bityob

Fix BOOX Go 7 Boot Loop Without Wiping Data (A/B Slot Switch)

Tested Version: This recovery method was successfully tested on a BOOX Go 7 experiencing a boot loop after upgrading to firmware version 2026-04-21_13-50_4.2.

If your BOOX Go 7 is stuck in an endless boot loop after a firmware update, do not factory reset your device!

Because Android utilizes an A/B partition system on this device, your previous working operating system is still intact on the inactive slot, and your personal data (userdata) remains untouched. This guide demonstrates how to use fastboot to switch back to the working slot and restore your device with zero data loss.

Keybase proof

I hereby claim:

I am bityob on github.
I am bityob (https://keybase.io/bityob) on keybase.
I have a public key ASC261h_yI8o_3dgCe_huTAifu3D2g0ZCgCbQd5gwFUqwgo

To claim this, I am signing this object:

What

We want to have 1 row by id, but not just aggregating all values with simple array_agg, but removing null and empty fields, removing duplicates, and doing it for array field and 2D array field too.

Table before agg logic

Table after agg logic

Run httpbin locally

docker pull kennethreitz/httpbin
docker run -d -p 8888:80 kennethreitz/httpbin

Clone this gist

git clone https://gist.github.com/02b1a823b478ad74a8440b86f95e13a6.git requests-latency-test
cd requests-latency-test

How to enable ssh on Windows?

Tested on Windows Version 10.0.17755.1

Run cmd as admin
Install OpenSSH.Client - dism /online /Add-Capability /CapabilityName:OpenSSH.Client~~~~0.0.1.0

C:\WINDOWS\system32&gt;dism /online /Add-Capability /CapabilityName:OpenSSH.Client~~~~0.0.1.0

	from aiosmtpd.controller import Controller
	import asyncio


	class ExampleHandler:
	async def handle_RCPT(self, server, session, envelope, address, rcpt_options):
	print(f"handle_RCPT: {address}")
	if address.endswith('@error.com'):
	user_part = address.split("@")[0]
	try:

	import socket
	import ssl

	SERVER_PORT = 60000
	HOST = "127.0.0.1"

	tls_client_cert = "client.crt"
	tls_client_key = "client-private-key.key"
	tls_key_password = None
	tls_ca_bundle = "ca_bundle.pem"

	def get_longest_substring_of_two_chars(string):
	max_start = 0
	max_end = 0

	curr_start = 0
	curr_second_char = 0
	curr_end = 0
	curr_chars = []

	for index, ch in enumerate(string):

	$arguments=$args[0]
	$command="Restart-Computer $arguments"

	Write-Host "Command: '$command'"

	iex $command

	Write-Host "Done"