Thread: About 37xx converted to 34xx satellites reception accuracy

in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)
you want photo psb?

Originally Posted by Alviora

you want photo psb?

If you have yes, thanks

Originally Posted by Alviora

in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)
you want photo psb?

Hi,

So If I understand, the problem with the sensibility in the 37XX transformed in 34XX is the wrong Chipset Firmware?
Like the mediatek mt3328 working with the chipset firmware NL5500L 1CM00X3 ?

Looks me very promisse this.

But the question that can not wait.... Is there a chance to install the correct chipset firmware on 37XX transformed in 34XX ?

EDIT:

I don't know if this helps:

Code:

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and

Code:

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[]'s

Originally Posted by rfb

Hi,

So If I understand, the problem with the sensibility in the 37XX transformed in 34XX is the wrong Chipset Firmware?
Like the mediatek mt3328 working with the chipset firmware NL5500L 1CM00X3 ?

Looks me very promisse this.

But the question that can not wait.... Is there a chance to install the correct chipset firmware on 37XX transformed in 34XX ?

This is what I was hoping for back in [Only registered and activated users can see links. ] and earlier. My accuracy is acceptable, but hybrid fw consisting of 34xx unit software and 37xx gps fw could maybe solve the problem of users with 15-20m accuracy?

Originally Posted by Alviora

in 37xx - mediatek mt3328 (1023-BVDL CQJKR2 revision is different, depending on the revision of the motherboard psb).
in 34xx - NL5500L 1CM00X3 with integrated Bluetooth ( NaviLink™ 6.0 Solution: NL5500)

I saw a both modification of original 34xx, 35xx with different version of GPS for Texas Instrument and MTK. In Nuvi37xx it is too but I do not remember how many. Also the first sign for MTK chipset is next files in filesystem:

.System\GPS\ARC.BIN
.System\GPS\BEE.BIN
.System\GPS\mt.nvm

In SW source code there are also references to both module: NL5500 and MT3328 (search for unicode string us usually)...

For interesting we may have the next PCB modifications:

V X
8 G B - 1 G B - 2 G B - 4 G B
O 3 6 - O 3 5 - O 3 7 - O ?
M M - M A - M ? - only old version of SW
D A - D S - D C - D W - D W H - D W N - D I - D ?
T M - T C - T W - T Y C - T ?
P P - P A - P ? - only old version of SW
H P
G M - G T - G T L - G T ?

Last Nuvi 2xx5 is much steeper than the 3ххх - it have 16 GB on board