Geeetech

Hi guys, if you buy the printer Prusa I3 M201 with 2-in-1-out switchable hotend, then you need to check here to install the firmware.
It's quite different from the boards like GT2560, cause we have upgraded the control system, based on STM32 processor. Ok, let get start!
Install the firmware for GTM32 (REV A)
Download the firmware here:
http://www.geeetech.com/forum/viewtopic ... 20&t=17046
Note: this is the latest firmware V1.0.5, fixed some bugs. For further information please come to here:
http://www.geeetech.com/forum/viewtopic ... 20&t=17279

Note: if your board is GTM32 REV B, the one that has a normal USB port, then please come here to install the firmware:
http://www.geeetech.com/forum/viewtopic ... 20&t=17597
If your board is GTM32 pro with 3 in 1 hotend, come here to install the firmware:
http://www.geeetech.com/forum/viewtopic ... 20&t=18167
1)Before installing the firmware, you need to install STM32 ST-LINK Utility. Please note that this software can only run in windows OS.
You can download it here:
http://www.st.com/web/catalog/tools/FM1 ... 7/PF258168 2)Install STM32 ST-LINK Utility
Unzip the software you download before and double click to install it. Click next to finish the installation.
3)Use the ST-LINK to connect GTM32 to the PC. The wirings for the ST-LINK is as the picture shows: Note: VCC for the ST LINK is 5V. And please mind the GND and VCC, wrongly connected will burn the board!

Before install the firmware, please disconnect the heatbed and heaters from the mainboard, cause all the heaters will turn on during the installation, so you might burn yourself if you didn't notice that!

Open STM32 ST-LINK Utility: ①Change the size to 0x0007FFFF ②Click "Open file", and choose the GTM32.hex file.(the firmware) ③Click "connect to the target" to connect to the board. If succeeded, you can get those codes:
13:55:52 : ST-LINK SN : 48FF71064977554859362387
13:55:52 : ST-LINK Firmware version : V2J17S4 (Need Update)
13:55:52 : Connected via SWD.
13:55:52 : Connection mode : Normal.
13:55:52 : Debug in Low Power mode enabled.
13:55:52 : Device ID:0x414
13:55:52 : Device flash Size : 512KBytes
④Click"full chip erase" to erase the chip first. ⑤Click "program verify", click start button in the pop-up window to install the firmware: When finish you can see the codes here:
14:00:11 : Flash memory programmed in 12s and 137ms.
14:00:11 : Verification...OK
Now we have finished installing the firmware for GTM32.

at the moment i lost one million hour to try work my new m201....i don't understand how is possible sell an unfinished product
many problems and now i try install the new firmware ( why?? is a new product but not work....)
step by step continue your guide...but not possible the" full chip erase" "read out protection activated"
how is the solution?
sincerely i have a big deception for buy this machine

what's the problem you run into with this printer? you can send mails to the geeetech support, they'll help you to solve it.
And the firmware issue, how about just follow step1, 3, and 4, could you erease the board? Never had this problem before...

The printer not work , only try print 2 or 3 layers and strop forever
i try erase the board but i cant, one massage say board erase protection

then how about the PSU output? does it has a 24V output?

i not adjust the PSU but i can move the 3 axis to home whitout any problem, and move the extrusors, but not print!
and cant install the new filmware, i am stop in the erase part:







lost more time change the different options in settings, and the same result

and this is how my m201 printer not print

https://youtu.be/DcN6y62VXd4

just check now, the PSU output 24,2V

the error, might be the ST-LINK is damanged,how about change another one or another PC to check it?
And the printer, what'f your firmware version? Seems you're printing via the SD card, the old version will meet those problems using SD card, so could you print via USB? and there's a "dry run" funciton on the lower right of your repetier, no need to heat up the hotend so you can slice the object and test it.

Thanks for your reply, yes i try in 3 computers and obtain the same problem in the erase step
i think the problem is the board, but order one new st-link for check
my version is 1.0.2
i not possible print for usb, install the drivers etc, but cant print, the same problem, start for a few seconds