help, can't start up my tt1 new edition.

[zsnow]

today, after update my tt1 in tt home. the Home installed a new app update around 10mb. then my tt1 can't startup anymore. always show a red X after reboot. I tried format the memory and restore the backup. doesn't help. it's properly the firmware got corrupted. before the update, everything is fine.
what should i do?

 

[digital-flex]

How about doing a soft reset (insert paperclip in the reset hole on the bottom of the unit)?

 

[cgigate]

new navcore is TomTom killer,
read this https://www.tomtomforums.com/showthread.php?t=4574

 

[zsnow]

i just bought a 2g sd card. after copy everything from the backup to the 2G card. my gps works again!
i think the internal memory properly not working properly. will try the downgrade.
thanks everyone

 

[zsnow]

just tried upgrade again with the sd card. now both can't boot. (sd and internal)
i tried the downgrade file to my root dir. still can't boot.
the upgrade is nightmare for me. i'll reformat the sd card.