@giulio-buccini Certainly, for troubleshooting, you can always use the LilyGO provided TFT_eSPI library but it is identical to the Arduino TFT_eSPI by Bodmer official up-to-date library, except for the 'User_Setup_Select.h' file is different. You can keep a copy of this little text file somewhere handy and just copy it and replace the one in the TFT_eSPI library. This is what I do.
LilyGO and M5Stack (the only two suppliers I use) use TFT_eSPI as their main graphics library and I can easily use it with experience. GFX is rather old Arduino Uno era graphics, IMHO.
Volos YouTuber uses TFT_eSPI in most of his cool projects.
TFT_eSPI can be configured for lightning quick 8 bit parallel drivers like LilyGO T-Display S3 and the T-HMI.
Sprites (invented in the 80s) allow easy but cool graphics, especially games.

Hi Terry, thank you for your reply.
I will try it but it is very complex.

I try it to solve directly with Squaline Studio.

@smarttracker Is this your board?
https://www.lilygo.cc/en-ca/products/t-sim-a7670e?_pos=1&_psq=A7670G&_ss=e&_v=1.0&variant=42737494458549
Some are purchased for less cost without GPS. GPS is a added cost option.
Screenshot 2023-11-24 at 11.19.06 PM.png
Sorry if this is not helpful to your situation.
The A7670G is a LTE cellular chip.
-Terry

I bought A7670G with included GPS antenna but have the same errors. What it suppose to work?? What is the reason to advertise that this device supports GPS??

I'm having the same issue, I know I got mine the day they released them and I wonder if the BOOT is bad or some tweek was made to the later editions.

Yes and No, you can activate the GNSS (GPS, Galileo..) and ask for the GNSS info (from cold start it me take a while to get position data). And establish a connection with GSM/LTE simultaneously. (As in they can run at the same time). The AT-command to receive data can be called fast after one another, but not Simultaneously.

// GSM/LTE AT+CGATT=1 AT+CGSOCKCONT=1,"IP","YOUR ANP" AT+CSOCKSETPN=1 AT+NETOPEN AT+IPADDR AT+NETOPEN? //+NETOPEN: 1 is net open // GNSS AT+CGNSPWR=1 AT+CGNSINF

You need to enter upload mode by first pressing Boot, then press and release Reset, then release Boot.
After upload you may have to unplug the board and plug it back in.

You can also "erase all flash before uploading" but it takes a long minute!

I have no experience with keyboards and mouse on ESP32, as I consider a Rasp pi a better choice for 'that sort of thing'.

Found it! with help of the lilygo sales team! 🙂

Schematic, DXF, pinout, its all here:
https://github.com/Xinyuan-LilyGO/ESP32_S2

Hello Terry

thank you for answering, I fear that this will not be of much use because I have, as an ex,
uploaded: ESPNOW_for_T_Display
the answer is :

ESP-ROM:esp32s3-20210327 Build:Mar 27 2021 rst:0x15 (USB_UART_CHIP_RESET),boot:0x8 (SPI_FAST_FLASH_BOOT) Saved PC:0x42073a4a SPIWP:0xee mode:DIO, clock div:1 load:0x3fce3808,len:0x44c load:0x403c9700,len:0xbe4 load:0x403cc700,len:0x2a68 entry 0x403c98d4

and the screen remains black

pascal

Hi，
Can you measure the voltage at this point? Please connect the battery and measure the voltage at this point in the picture to see how much V it is.

15672276-f49b-44e3-af5d-d6fadfd767a9-image.png