GPS Navigators, Pinouts, Dumps, Connection, Tips - GSM-Forum

**blang** · 07-15-2013, 10:54

Here will be discussion about GPS navigators dumps, connection, pinouts,

At this moment GPS navigators READ/WRITE supported via DIRECT EMMC connection.

In theory supported all navigators based on EMMC.

Lets start this

Hope EASY-JTAG will help repair unbrick lot ot GPS devices.

hans salim · 07-15-2013, 11:39

what about to remove pin code in garmin navigation?

**blang** · 07-15-2013, 11:51

Quote:

Originally Posted by hans salim

what about to remove pin code in garmin navigation?

if this garmin emmc based - you can read/write full or part of dump. i think all pins and other information there.
if cloning possible you can write full dump from working one.

CHAUDHRAY ARSHAD · 07-15-2013, 13:45

wt about tom tom . pin code

**blang** · 07-15-2013, 14:05

Quote:

Originally Posted by CHAUDHRAY ARSHAD

wt about tom tom . pin code

if this tom tom emmc based - you can read/write full or part of dump. i think all pins and other information there.
if cloning possible you can write full dump from working one.

haute · 07-16-2013, 20:41

Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

NoName® · 07-22-2013, 00:07

Quote:

Originally Posted by haute

Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

Best eMMC pinout finder already invented ;-)

**blang** · 07-22-2013, 08:44

Quote:

Originally Posted by haute

Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v?
Where you can find some example information pinouts on Garmin GPSs?
Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC.
Greetings ..

100% way to find emmc direct connect poinout - you can remove EMMC and check pins via tester.

we have emmc direct pinout for 2 navigators 1 mio and 1 garmin. soon will be uploaded to support.

haute · 07-22-2013, 19:19

Not everyone has an oscilloscope at home to find the points.
But I think they'd be grateful if you put a small tutorial on how to find the points with an oscilloscope eMMC simple.
There are some cheap oscilloscopes, via USB.

On the other hand, I think I have spotted a standard JTAG port all garmin models.
I want to buy the box and check it.
I saw on the specifications of the box, it is possible to make debugger, reading registers, and put breakpoints.
I have not seen any post regarding these features.

A greeting.

spagman · 07-27-2013, 13:53

Any chance of JTAG on a Nand memory GPS?

I picked up a Garmin C330 for very cheap just so I can start playing with GPS JTAG/ repair... I know it is not Emmc but is there a way we can still use JTAG to read/write ?

The GPS is stuck on boot logo after the original owner tried flashing new maps. I tried Hard reset ..does not work.

Nand memory used is here:
K9W8G08U1M datasheet, Pinout ,application circuits 512m X 8 Bit / 256m X 16 Bit Nand Flash Memory Semiconductor

haute · 07-27-2013, 19:40

spagman, you can put the detailed photos of the two sides of the PCB?
Maybe, I can help to find jtag port.

A greeting.

spagman · 07-27-2013, 19:55

Here is the other side....I think the pinout is in the first picture though... I don't see anything interesting in this one.

haute · 07-27-2013, 22:07

Hello, in the top right of the MicroSD card slot, there are 8-pin row.
1 -
2 - Tms
3 -
4 - Tdi
5 - Gnd
6 -
7 -
8 - Tck

I think the order of the pins is the show.
I think it is a standard JTAG connector on garmin gps.
Jtag_finder Mode Testing and coments us the results.

Another option, is to be the connector on the top left of the PCB.
An 8-pin connector. Check if pin 5 is Gnd.

A greeting.

NoName® · 07-27-2013, 23:15

Quote:

Originally Posted by haute

Hello, in the top right of the MicroSD card slot, there are 8-pin row.
1 -
2 - Tms
3 -
4 - Tdi
5 - Gnd
6 -
7 -
8 - Tck

I think the order of the pins is the show.
I think it is a standard JTAG connector on garmin gps.
Jtag_finder Mode Testing and coments us the results.

Another option, is to be the connector on the top left of the PCB.
An 8-pin connector. Check if pin 5 is Gnd.

A greeting.

is there any info for jtag connection of this device ? init ? architecture ?

spagman · 07-27-2013, 23:58

No information at all that I can find online. Only ship replacement parts.

07-15-2013, 10:54	#1 (permalink)
blang Product Manager Join Date: Oct 2000 Location: future Posts: 22,385 Member: 2368 Status: Offline Sonork: 100.111111 Thanks Meter: 186,085	GPS Navigators, Pinouts, Dumps, Connection, Tips Here will be discussion about GPS navigators dumps, connection, pinouts, At this moment GPS navigators READ/WRITE supported via DIRECT EMMC connection. In theory supported all navigators based on EMMC. Lets start this Hope EASY-JTAG will help repair unbrick lot ot GPS devices. Last edited by blang; 07-15-2013 at 19:10.

07-27-2013, 13:53	#10 (permalink)
spagman No Life Poster Join Date: Jul 2012 Posts: 535 Member: 1783314 Status: Offline Sonork: 100.1620532 Thanks Meter: 127	Garmin C330 Any chance of JTAG on a Nand memory GPS? I picked up a Garmin C330 for very cheap just so I can start playing with GPS JTAG/ repair... I know it is not Emmc but is there a way we can still use JTAG to read/write ? The GPS is stuck on boot logo after the original owner tried flashing new maps. I tried Hard reset ..does not work. Nand memory used is here: K9W8G08U1M datasheet, Pinout ,application circuits 512m X 8 Bit / 256m X 16 Bit Nand Flash Memory Semiconductor

07-27-2013, 22:07	#13 (permalink)
haute Junior Member Join Date: Jan 2012 Posts: 25 Member: 1713721 Status: Offline Thanks Meter: 8	Hello, in the top right of the MicroSD card slot, there are 8-pin row. 1 - 2 - Tms 3 - 4 - Tdi 5 - Gnd 6 - 7 - 8 - Tck I think the order of the pins is the show. I think it is a standard JTAG connector on garmin gps. Jtag_finder Mode Testing and coments us the results. Another option, is to be the connector on the top left of the PCB. An 8-pin connector. Check if pin 5 is Gnd. A greeting. Last edited by haute; 07-27-2013 at 22:15.

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07-15-2013, 11:39	#2 (permalink)
hans salim No Life Poster Join Date: Jun 2006 Location: in this world Posts: 2,525 Member: 292087 Status: Offline Sonork: 1575183 Thanks Meter: 193	what about to remove pin code in garmin navigation?

07-15-2013, 13:45	#4 (permalink)
CHAUDHRAY ARSHAD No Life Poster Join Date: Aug 2006 Location: gsmchaudhrayarshad Age: 43 Posts: 6,948 Member: 328688 Status: Offline Thanks Meter: 2,258	wt about tom tom . pin code

07-16-2013, 20:41	#6 (permalink)
haute Junior Member Join Date: Jan 2012 Posts: 25 Member: 1713721 Status: Offline Thanks Meter: 8	Hello, you are creating a way eMMC finder, like jtag finder?, To find the points CMD, DAT0-to 4, CLK, 1.8 v and 2.8 v? Where you can find some example information pinouts on Garmin GPSs? Most I know Garmin GPS: Nuvi, outdoor, edge and forerunner use eMMC. Greetings ..

07-22-2013, 19:19	#9 (permalink)
haute Junior Member Join Date: Jan 2012 Posts: 25 Member: 1713721 Status: Offline Thanks Meter: 8	Not everyone has an oscilloscope at home to find the points. But I think they'd be grateful if you put a small tutorial on how to find the points with an oscilloscope eMMC simple. There are some cheap oscilloscopes, via USB. On the other hand, I think I have spotted a standard JTAG port all garmin models. I want to buy the box and check it. I saw on the specifications of the box, it is possible to make debugger, reading registers, and put breakpoints. I have not seen any post regarding these features. A greeting.

07-27-2013, 19:40	#11 (permalink)
haute Junior Member Join Date: Jan 2012 Posts: 25 Member: 1713721 Status: Offline Thanks Meter: 8	spagman, you can put the detailed photos of the two sides of the PCB? Maybe, I can help to find jtag port. A greeting.

07-27-2013, 19:55	#12 (permalink)
spagman No Life Poster Join Date: Jul 2012 Posts: 535 Member: 1783314 Status: Offline Sonork: 100.1620532 Thanks Meter: 127	Here is the other side....I think the pinout is in the first picture though... I don't see anything interesting in this one.

07-27-2013, 23:58	#15 (permalink)
spagman No Life Poster Join Date: Jul 2012 Posts: 535 Member: 1783314 Status: Offline Sonork: 100.1620532 Thanks Meter: 127	No information at all that I can find online. Only ship replacement parts.