MobileRead Forums - View Single Post - PocketBook Basic 2 (PB614) unresponsive, always in FEL/flashing mode

kib · 09-28-2021, 03:02 PM

You can easily check if the buttons are working by a multimeter switched to a continuity tester mode (if you connect the probes you hear a buzzer sound). Then you connect the probes to both pins of the button (you should not hear the buzz) and you should hear a buzz when you press the button. There are 4 pins on each button in fact, while two pins are connected.

For connecting to the UART you can buy USB to TTL adapter , but choose one that supports both 5V and 3.3V as the UART on the ebook is 3.3V.

There are also interesting information about reverse engineering the ebook here: https://www.synacktiv.com/en/publica...-reverser.html

09-28-2021, 03:02 PM	#32
kib Junior Member Posts: 2 Karma: 10 Join Date: Sep 2021 Device: PB631	You can easily check if the buttons are working by a multimeter switched to a continuity tester mode (if you connect the probes you hear a buzzer sound). Then you connect the probes to both pins of the button (you should not hear the buzz) and you should hear a buzz when you press the button. There are 4 pins on each button in fact, while two pins are connected. For connecting to the UART you can buy USB to TTL adapter , but choose one that supports both 5V and 3.3V as the UART on the ebook is 3.3V. There are also interesting information about reverse engineering the ebook here: https://www.synacktiv.com/en/publica...-reverser.html Last edited by kib; 09-28-2021 at 03:07 PM.