Since 16.04.2026 S20 Pro not working
Hi, it seems that I have this same issue, and a lot of other users are trying to find the reason what is going on. I was checking sim cards, sms commands, nothing is working, ~18 days ago device just stopped reporting positions, since this time nothing. So I also check serial port, and
^boot.rom'v'!\n^boot.rom'v'!\nRDY
enter factory test timeout ...
ļ ж ȡϵͳ ,len=1024,1024,1024
get_sys_param:back=0x0,0xa8.main:0x0,0xa8
ļ ж ȡ û ,len=1024,1024,1024
get_user_param:back=0x0,0x88.main:0x0,0x88
****************** ϵ Ϣ******************
--->Ӳ 汾 S20 Pro_V1.00
---> 汾 #S20Pro#ITOJTS11306D260415
---> ʱ 䣺Apr 15 2026_17:18:43
--->RTCʱ 䣺2026-05-04 21:21:17
---> 汾 BC78_V1.13 241009
****************** ******************
---> one.gpsog.com
--->IP:0.0.0.0,0
---> ܼ IP:47.52.50.49,1234
---> ־ IP:47.52.50.49,4542
--->AGPS DNS:iot.bsjyun.com9885
--->APN:internet4gd.gdsp,,
---> :IMEI
---> ټ :0,5
---> ֵ:75
--->ȱʡ ʱ :5
---> ߶ ʱ :300
---> :0
---> λ״̬:< > 0
read_active_int: 20
read_byte id: 0x13
Right now, it is time for warranty claims or charge back
same here, not responding to SMS or changes via serial command, the only command that works via serial is <CKVER> to show the version number...
I searched literally the whole internet to find a forum or firmware, but found nothing. Does anybody know a dedicated forum for tracker?
I already found 2 commands that are responsive (over serial port):
command: <CKVER>
answer: <VER:SDK:BC78_V1.13_241009,APP:#S20Pro#ITOJTS11306D260415_Apr 15 2026_17:18:43>
command: <SPBSJ> returns the parameters (normally you could use this command to change them but it doesn' take it) - I changed my SERIALNUMBERxxx and IMEIxxx in the output below
answer: <WW*N:SERIALNUMBERxxx*Q:one.gpsog.com:9760*CGREG:5*CSQ:16*GPS:(V,0,3)*A:internet4gd.gdsp*C:10*O:300*CS:0*3U:0*3Z:0*H:300*2A:1*GP:NO*5C:0*60:1*5Y:3.5*6N:0,0*3E:000050*5T:2,2*9E:00:00*1H:1*3D:000000*2S:0*I:0000000*B:2*HAD:WW*IM:IMEIxxx*RF:1*SCN:*AG:1*wifi_sw:0>
I tried <SPBSJ*A:iot.1nce.net> but it just prints out the current settings like above
Some progress here with the tracker
Download the configurator tool from BSJ-Technology https://y.gpstracktech.com/#/loginv2/help/SoftwareToolDetail?id=6
Connect the serial port, pull-down the boot pin to GND
Voila, the software reads the data from the device, but i was not able to set the ip, called tcp1 in the software.
Also via this site https://y.gpstracktech.com/#/loginv2/help/ProtocolDocument?protocol=CW010001
you get all the new commands to communicate via SMS with the tracker
I could not set TCP1 to my traccar server, whether with the tool nor by SMS. So I soldered a cut USB Cable to DP green DM white GND black and 5V red. As soon as I power the tracker there are 4 COM ports that disappear instantly. Regarding Gemini these are Unisoc ports to read and flash the device, but I could not get the SPD Research Tool to recognise the ports to stop the boot process
Hello,
I have two Wanwaytech S20 Pro with German Lidl-Connect Prepaid cards, that worked like a charm with traccar till above date.
First they did not sent any data to my own traccar server and then they do not answer to my SMS.
I soldered a RS232 to USB to the internal com port TXD1/RXD1 and this is the log:
It seems that they did somehow a firmware update, as the firmware date is new (APR 15 2026).
Now the device seems bricked. The only thing still working ist the SOS Button that sends a position SMS to my smartphone.
Has anyone the same issue? Is there a solution?
Thank you.
Regards Timo