tom tom 720 freeze at startup after download upgrade

please i need your help, after i downloaded the upgrade of tomtom home my 720 freeze and is not recognized by my computer, can you help me please?

See if anything here helps

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TomTom 720--NA Map 855--WCE Map 840--NZ Map 835--App 8.351

after I connect my tomtom to my computer i received an upgrade proposition

to my TOMTOM HOME SOFTWARE so i did it

Ater this upgrade I can not connect anymore my TOMTOM to my computer because tomtom

frezze on the black screen with the tomtom icon.

WindoWs explorer does not recognize the tomtom memory (internal and external) even if i use

computer management\disk management i can not see tomtom's memory

only when i put my sd memory outside the tomtom using an usb SD adapter i can see it with the explorer

I can not do anything with the internal memory

I can not format it because i cannot see it i tried to format the internal memory with a software for

format sd memory but says is write protected

if i put my sd memory on the gps tomtom work fine wake up fine and route without problem

but i can not connect to my computer because freeze

can you help me with this problem please



when i press on button for a wile i obtain a black screen with a lot information

that can be useful for you

HARDWARE TYPE: TOMTOM GO 720
SUBID (FEATURE) 01: 01 (00000000000000000000.....00)
BOOT LOADER VERSION S5.5120 CLIST # 281356 RVCT
CHECKSUM: 3C42
MEMORY: 64MB
CLOCKS: 396.000 132.000 66.000
GPSTYPE : SIRF 3 FFFF
SD CARD CAPACITY: 3911680 KBYTE
MMC NAND VERSION (PRV) GHZ 8BITZ(SAMSUNG)
STARTUP MODE : POWER DOWN
BLUETOOHT CALIBRATION 0X0024
TOUCH SCREEN CALIBRATION DATA 76 935 182 830 @ 3300MW
SECTOR PROTECTION YES
BATTERY BOOT VOLTAGE 4043 MV
RTC 00:09:32 01/01/2000



many thanks in advance

Have you tried resetting it? There's a pinhole on the bottom of the GPS. You can use a pin to hit the reset button.

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All is not what it appears.