Tomtom Go professional 620/520 screen go crazy after firmware update

adamvfr

hi, i bought a used Tomtom Go proffesional 620 and after i did a update of speadcameras and firmware update (is a must) screen started to be crazy, it switch (tap) icons by it self etc. when typing a word "leicester" i am getting leiccelostter" or so, the strange is that it putting the letters that my finger is not even close to, its hard to swipe coz the screen most likely do a tap instead of swipe.

I decided to give a sat nav back as i was not sure it was like that before update coz i use it only few minutes before i procced to do an update.

i bought another unit, new one but go 520 professional and all the same happend, WHY ??? idid all updates now and still can't write the word i want.

adamvfr

all update in both units been done only by wifi, no pc been coneccted, two satnavs are still with me. i just had a problem with my previous tomtom 5150 live, and now this ! What is going on ?

DougLap

Hi @adamvfr

Have you fitted a screensaver?

Doug

adamvfr

i found the answer, its one of my two samsung fast chargers

they both are the same or at least looks the same, but when its plugged on one of them its starting to bee crazy, no matter the cabel,

DougLap

Hi @adamvfr

Glad you sorted that one out before you may have done some harm.

Doug

YamFazMan

Hi
@adamvfr

Be VERY careful with some the the latest USB Charges
Always check the OUTPUT specs of the Power adapter
The Power adapter for a friends Microsoft Windows Tablet uses High-speed USB charging 19Volts yes Nineteen volts... Not the usual 5Volts

ATB YFM