At the heart of the “Walter” board lies the ESP32-S3 microcontroller, equipped with 2MB of RAM and 16MB of flash memory.

I dont know if it will help but you can take your N70 to a Nokia Service Center and get it upgraded to v5 firmware which has some BT fixes in it, plus also makes things much speedier !

Go here and right click on the spinning floppy disk and then select SAVE TARGET AS and point it to a directory you want to download to.

Providing accurate and real-time travel information to train passengers remains a challenge in many transportation systems, especially along routes not yet equipped with modern information ...