Some t-beam's are arriving with the power to the GPS antenna turned off. this reset is not re-enabling it.
Can we get that re-enabled?

I am trying to use T22-GPS-reset-v3 and T22-GPS-restoreFactory-v2 with LilyGO/TTGO-T-Beam T22 Rev1.1 20210222.
Actually, I would like to use the code just to enable/disable certain NMEA messages.
But it does not go over this line
if (myGPS.begin(SerialGPS)) {
means it does not print the following serial console message
Serial.println("Connected to GPS");
I get only these:
Connected to Serial
AXP192 Begin PASS
All comms started
Seems it does not get response from myGPS.begin(SerialGPS) function.
It seems to me GPS_RX_PIN and GPS_TX_PIN have not changed as some other Arduino sketches I tried using Neo6M GPS module work fine with this board.
I am using SparkFun_Ublox_Arduino_Library v 1.8.11.

I am new to this board, do not have any ideas what I could try.

If I try to execute your code it stops at myGPS.begin() for T22-GPS-reset-v3 and T22-GPS-restoreFactory-v2 and getting error as bellow for GPS-T22_v1.0-20190612_v1.1-20191212-resetGPS

Rebooting...
ets Jul 29 2019 12:21:46

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1184
load:0x40078000,len:13160
load:0x40080400,len:3036
entry 0x400805e4
AXP192 Begin PASS
All comms started
===== STATE 0
GPS: trying 38400 baud
GPS: trying 9600 baud
GPS: connected at 9600 baud, switching to 38400
GPS: trying 38400 baud
GPS serial connected, saved config
Latitude : 0.00000
Longitude : 0.0000
Satellites: 0
Altitude : 0.00M
Time : 0:0:0
Speed : 0.00

===== STATE 1
Issuing hardReset (cold start)
Success.
Latitude : 0.00000
Longitude : 0.0000
Satellites: 0
Altitude : 0.00M
Time : 0:0:0
Speed : 0.00

===== STATE 2
Issuing factoryReset
Success.
Latitude : 0.00000
Longitude : 0.0000
Satellites: 0
Altitude : 0.00M
Time : 0:0:0
Speed : 0.00

===== STATE 3
GPS protocol version: Guru Meditation Error: Core 1 panic'ed (LoadStoreError). Exception was unhandled.

Core 1 register dump:
PC : 0x400d3dd7 PS : 0x00060c30 A0 : 0x800d3e89 A1 : 0x3ffb27a0
A2 : 0x3ffc1154 A3 : 0xc003ec57 A4 : 0x0000000a A5 : 0x00000000
A6 : 0x000000aa A7 : 0x00000000 A8 : 0x0003ec4c A9 : 0x40000013
A10 : 0x00000050 A11 : 0x00000052 A12 : 0x000000cc A13 : 0x0000000b
A14 : 0x0000000a A15 : 0xff000000 SAR : 0x0000000a EXCCAUSE: 0x00000003
EXCVADDR: 0x40000013 LBEG : 0x40086000 LEND : 0x4008600a LCOUNT : 0x00000000

Backtrace:0x400d3dd4:0x3ffb27a00x400d3e86:0x3ffb27c0 0x400d186e:0x3ffb27e0 0x400d55b5:0x3ffb2820

ELF file SHA256: 0000000000000000

what does it means?

I am using a TTGO T-BEAM v.1.0 2019612 , suddenly my GPS stopped working.
I applied GPS-T22_v1.0-20190612_v1.1-20191212-resetGPS and using the serial monitor I saw it was in an endless loop.

Removed power sources from the T-BEAM and after that any program I use does not manage to communicate with the axp

Example code used:
Wire.begin(i2c_sda, i2c_scl);
int ret = axp.begin(Wire, AXP192_SLAVE_ADDRESS);
f (ret == AXP_FAIL) {
Serial.println("AXP Power begin failed");
while (1);
}

I do get the message "AXP Power begin failed" and then gets in the endless loop !

Any ideas?

Everyting was working fine before and have not touched or soldered anything on the board.

Sorry to be a butt, but I'm semi knowledgeable with this stuff, but I really struggled through getting everything ready for Arudino IDE to detect and flash this, a how to would be really nice to see.

Thanks!

The sketch isnt running on our devices. I'm seeing a panic at State 3:

GPS protocol version: Guru Meditation Error: Core  1 panic'ed (LoadStoreError). Exception was unhandled.
Core 1 register dump:
11:59:09.450 -> PC      : 0x400d2d24  PS      : 0x00060530  A0      : 0x800d2dd5  A1      : 0x3ffb1f30  
11:59:09.450 -> A2      : 0x3ffc0120  A3      : 0xc003fd53  A4      : 0x0000000a  A5      : 0x00000022  
11:59:09.450 -> A6      : 0x0000000c  A7      : 0x00000004  A8      : 0x40000015  A9      : 0x0003fd4a  
11:59:09.450 -> A10     : 0x00000050  A11     : 0x00000052  A12     : 0x000000fe  A13     : 0x0000000b  
11:59:09.450 -> A14     : 0x3ffc0220  A15     : 0xff000000  SAR     : 0x0000000a  EXCCAUSE: 0x00000003  
11:59:09.450 -> EXCVADDR: 0x40000015  LBEG    : 0x4000c28c  LEND    : 0x4000c296  LCOUNT  : 0x00000000  

Maybe something to do with the Ublox library but thought I'd post in case anyone has suggestions.
T-Beam V1.1 20201212

Running your sketch in VS Code. All libs in place, no build errors. Execution stops at STATE 0:

rst:0x1 (POWERON_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0018,len:4
load:0x3fff001c,len:1044
load:0x40078000,len:8896
load:0x40080400,len:5828
entry 0x400806ac
Connected to Serial
AXP192 Begin PASS
All comms started

===== STATE 0

Any ideas?