Thread: Nuvi Rom Cure by batch (if Nuvi booting and reebooting for wrong map / wrong gupdate.gcd etc)

Rom cure (if Nuvi booting and reebooting for wrong map / wrong gupdate.gcd etc)

You will get 3 files in the rar
1).Hex Editor
2).Script file
3).Batch file

Concept :: Nuvi can get problem from many reason ie wrong map / wrong gupdate.gcd etc.
Nuvi will boot and read the wrong file and then --> reboot.

The way to cure is :: How to skip reading the wrong file ?
HexEditor is the answer :: to change Hexstring (ie gmapsupp.img-->gmapsupp.mig)
and then the F/w will not see the wrong file anymore and will have success in booting.
Now you can delete the wrong file and flash nuvi again with the original gupdate.gcd or mod rgn file.
--------------------

for test.xsc
Open with note pad
you will see

ADR 0
REPLACEALL 30 00 30 00 36 00 42 00 BY 30 00 30 00 42 00 36 00
ADR 0
REPLACEALL 00 00 42 00 30 00 BY 00 00 30 00 42 00
ADR 0
REPLACEALL 67 00 6D 00 61 00 70 00 BY 6D 00 67 00 61 00 70 00

ADR 0 --> Search from start point of file.

if you want to make cure rgn for wrong gupdate.gcd
you may edit like this
"G U P D" --> "U G P D" and
"g u p d" --> "u g p d"



so the script will be

ADR 0
REPLACEALL 47 00 55 00 50 00 44 00 BY 55 00 47 00 50 00 44 00


For batch file
it will do edit in boot.bin and fw_all.bin

Normally use only boot.bin + fw_all.bin for cure rgn.
rgn just for boot nuvi to delete wrong file inside and have to flash with correct gcd or rgn again.





cure rom.rar (494 KB)
attached