GPS-Chip SIRF-III upgrade from version: GSW3.2.4TT3 to version: GSW3.2.5TT3 or GSW3.6.0

the GPS firmware GSW3.6.0 generally (but not always) finds approx. 2 satellites more than the GPS firmware GSW3.2.5,
but the GPS firmware GSW3.2.5 is usually a bit faster with the Satfix than the GPS firmware GSW3.6.0

If you want your GPS to always sync as quickly as possible, choose version 3.2.5,
if you prefer to wait a little longer but get most of the satellites, get version 3.6.0

for TT GO 510, GO 520, Go 630, GO 710, Go 720, GO 730, GO 715, Go 920, GO 930
ONE (v2), ONE 2nd Edition (V3), GO 7000 Truck
Rider 1+2
this is "standby problem" fixed now (again satellite fix from standby in seconds).

TomTom ONE 1st Edition with SD 2GB serial number: G1; G2
TomTom ONE 2nd Edition with SD 2GB serial number: E1; E2
TomTom ONE 3nd Edition with internal memory 512MB and 1GB Serial number: Y1; Y3
TomTom RIDER 1 + 2 with SD 2GB serial number: K1; K2
TomTom GO 510, GO 710 with SD 2GB or Go910 with HDD 20GB Serial number: V5, V7
TomTom GO 715 serial number: M7
TomTom GO 520 with 512MB-1Gb memory Serial number: M2; M4
TomTom GO 530 with 1-2 GB memory Serial number: J1; J2
TomTom GO 630 with 2GB memory Serial number: JB
TomTom GO 720 with 512MB-2GB memory Serial number: M6; M9
TomTom GO 730 with 1-2-4GB memory Serial number: J3; J4; J5
TomTom GO 920 (T) with 4GB memory Serial number: M8
TomTom GO 930 with 4GB memory Serial number: J6
TomTom GO 7000 Europe Truck Navigation SD & 4 GB memory Serial number: LF

for this Navi should run the GPS-Chip_SIRF-III upgrade GSW3.2.5TT3, most are tested

Since 28 September 2019, there is no size limit for the SD card (2GB) ,
but a suitable bootloader must then be installed.
For the fixed devices with a different bootloader version such as: version 8.xxxx ,
never, not even once try to carry out the upgrade described here !!!
The upgrade will not be written to the correct location in the Navi, and this will render the device unusable.
We also have no way of reversing the flash process.

the renewed upgrade has the name: One For All-Universal-Upgrade GSW3.x.x GPS-Chip_SIRF-III

with video
on these sat navs (TT GO 710 and TT ONE v2) I have the upgrade self-made,
with the old firmware (GSW 3.2.4TT3) 5-7 satellites found,
with the new firmware (GSW 3.2.5TT3) 10-12 satellites, but
that could also be daily dependent
on GO 710;
at intervals of 10 min.
(in the time, old exchanged for new firmware)
on the GOx20 and GOx30 in this forum also achieved very good results,
in how far it works on other devices, I can not say.
to flash an SD card up to max. 2GB use
the output NC for flashing comes from navcore_6.52.7690.go-rider-one,
The firmware GSW3.2.5TT3 comes from the NC 10.855.2319141_ECR9.9-CAB-Fuji
from the Mazda NB1 and is the last (10 / 04/2013) Firmware for Tomtom GPS Chip Sirf 3
GSP_Chip Sirf_III, and only for this

Attention of the flash process must not be interrupted under any circumstances because the Navi else can be wrecked
(which is like the PC, the BIOS upgrade)
NOTE.
To do the upgrade;
The Navcore used by the upgrade is outdated. You must therefore use an SD card with a capacity between 256 MB and 2 GB .
Also, the internal memory of the TT-Navi must be within this range, so for devices such as the GO920, which comes standard with 4GB, the following
applies : You must use an external SD card.
Please note that the procedure deletes files and folders after the upgrade. So, if you still want to upgrade to another device, you must resubmit the files from the update folder.

Quick start Guide.
Assuming that your sat nav does not have an SD slot, the internal memory will be treated like the SD card.

1-Take a blank SD card and connect it to your PC.
2-copy the upgrade files from your model's folder to the SD root (or internal root directory).
3-Disconnect the SD card from the PC and remove the hardware safely.
4-Replace the SD on the TT, turn it on and wait for the upgrade, on average it takes a few minutes, even less.
4-Insert your SD card with the Navcore back into the device you normally use.
GSW3.2.5TT3-CRC32_3.3.01.06-C34P3.00
and as always: upgrade at your own risk
---------------------------- -------------------------------------------------- -------------------------------------------------- --------------------------------------
GPS Chip_SIRF-III review upgrade to GSW3.2.5 TT3

tested on the TT GO 710 with the bootloader 5.5285

sirf3 with firmware 3.2.4
NC 9.170 with empty ephem folder and without Suicide.dat: Satellite search takes a long time and the satellites are often lost
NC 9,510 (no auto_an) with empty ephem folder and without Suicide.dat: Satellite search 1-3, I got past 15 minute abandoned
NC 9,510 (with auto_an) with empty ephem folder and without Suicide.dat: satellite search 1-4, takes me long after 5 min. abandoned
NC 9,541 (with auto_an) with empty ephem folder and without Suicide.dat: 5-8 satellites in a relatively short time
------------------------ -------------------------------------------------- -------------------------------------------------- ----------
sirf3 with firmware 3.2.5
NC 9.170 with empty ephem folder and without Suicide.dat: satellite search satellite search in 1-4 min 4-7 Sat. found and quite stable
NC 9.510 (with auto_an) with empty ephem folder and without Suicide.dat: satellite search in 3- 4 min 3-6 Sat. Found and stable
NC 9.510 (no auto_an) with empty ephem folder and without Suicide.dat: Satellite search in 3-4 min 3-6 Sat. found and were often lost
NC 9.541 (with auto_an ) with empty ephem folder and without Suicide.dat: 5-11 satellites found in a relatively short time and stable

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jungblume2005 Reviewed by jungblume2005 on 12th September 2019. GPS-Chip SIRF-III upgrade from Version: GSW3.2.4TT3 to Version: GSW3.2.5TT3 GPS-Chip SIRF-III upgrade from version: GSW3.2.4TT3 to version: GSW3.2.5TT3 or GSW3.6.0 the GPS firmware GSW3.6.0 generally (but not always) finds approx. 2 satellites more than the GPS firmware GSW3.2.5, but the GPS firmware GSW3.2.5 is usually a bit faster with the Satfix than the GPS firmware GSW3.6.0 If you want your GPS to always sync as quickly as possible, choose version 3.2.5, if you prefer to wait a little longer but get most of the satellites, get version 3.6.0 for TT GO Rating: 5