STLink Ninebot ESX ESC: Difference between revisions

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STLink Ninebot ESX ESC (view source)

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In the case of a bricked ESC/Controller/Control Board, STLinking can save the controller from needing to be replaced in some instances.
In the case of a bricked '''ESC/Controller/Control Board''', STLinking can save the master control board from needing to be replaced in some instances.


==Accessing the Debug Pins==
This is often the only way to save a board that has been bricked when the wrong firmware was flashed or an update failed.


===Accessing the ESC===
This guide shows how to STLink the Controller/Master Controlboard/ESC for the following scooters:


Remove the 4x Security Torx T25 screws or Hex Screws that hold the handlebar in place on the pole.
{{Ninebot ESX Series Model List}}


[[File: NinebotEsxHandlebarScrews.jpg|thumb|center|400px|The handlebar screws in place.]]
==Accessing the Debug Pins==
 
Remove the 4x Security Torx T30 screws or Hex screws that hold the pole to the base.


[[File: NinebotEsxPoleScrews.jpg|thumb|center|400px|The pole screws in place.]]
{{Ninebot ESX Access Internals}}


===Dissassembling the ESC===
===Disassembling the ESC===


The internal battery unplugs fairly easily but the BMS connector may need needle-nose pliers to remove the connector.
The internal battery unplugs fairly easily but the BMS connector may need needle-nose pliers to remove the connector.
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[[File:NinebotESXESCExternalBatteryPortScrews.jpg|thumb|center|400px]]
[[File:NinebotESXESCExternalBatteryPortScrews.jpg|thumb|center|400px]]


==Software==
Once all screws have been removed, you can pull the ESC to remove it port end first.
 
[[File:NinebotESXESCRemoving.gif|thumb|center|400px|The ESC being removed from the housing/heatsink.]]


Download [https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link004.html#get-software STM32 STLink Utility] from the ST website.
[[File:NinebotESXESCRemoved.jpg|thumb|center|400px|The ESC removed from the housing/heatsink.]]


Scroll down and click "Get Software" and enter your email to receive a download link.
==Download Software==


Install it and open it.
{{ Install STM32 STLink Utility }}


==Flashing==
==Flashing==


Download the 1.3.9 full dump .bin from ScooterHacking.
===Connect the STLink to the Master Control Board===
 
Connect pins to 5v/VCC, GND, SWDIO, and SWCLK as shown below.
 
[[File:NinebotESXESCSTLinkPinout.jpg|thumb|center|400px|The pins and where they should be connected.]]
 
You can solder to these for a better connection or hold DuPont connectors as shown in the image.
 
[[File:NinebotESXESCSTLinkConnectors.jpg|thumb|center|400px|Using dupont cables to connect to the STM32.]]
 
Here I did a poor solder job but it still works.
 
===STM32 STLink Utility===
 
Download the [https://github.com/scooterhacking/firmware/blob/e0b55b1ef90aebf44305ab679d2494ceece0ce62/Ninebot%20ESx%20and%20SNSC1.x/DRV/esc139_fulldump.bin 1.3.9 full dump .bin from ScooterHacking].
 
You can only flash full dump files or the ESC will not function.
 
Always check that you are downloading files from trusted sources(aka ScooterHacking) to avoid flashing malicious firmware.
 
Open STM32 STLink Utility and attempt to connect to the ESC with the button shown below.
 
[[File: STM32STLinkUtilityConnect.png|thumb|center|400px|Click the button shown here to attempt to connect.]]
 
You should be warned that readout protection is enabled if it is connected successfully.
 
[[File: STM32STLinkUtilityReadoutProtectionWarning.png|thumb|center|400px|The warning will be fixed in the next steps.]]
 
Next, press CTRL + B to open the chip settings.
 
Select "Disabled" under "Read out protection".
 
[[File: STM32STLinkUtilityChipSettings.png|thumb|center|400px|The warning will be fixed in the next steps.]]
 
Next, click the open icon on the far right as shown.
 
[[File:STM32STLinkUtilityOpenFile.png|thumb|center|400px|Click to open the file.]]
 
Select the esc_fulldump139.bin file you downloaded earlier.
 
[[File:STM32STLinkUtilityOpenFulldumpFile.png|thumb|center|400px|Click to open the esc_fulldump139.bin file you downloaded earlier.]]
 
Click Target->Program & Verify or press CTRL + P.
 
[[File:STM32STLinkUtilityProgramAndVerify.png|thumb|center|400px|Open the programming menu.]]
 
Confirm one last time that the file you are flashing is the full dump and then press "Start".
 
[[File:STM32STLinkUtilityStartProgramming139FullDump.png|thumb|center|400px|Match the settings and confirm the file before pressing start.]]
 
The program will now program the chip with the full dump.
 
Once it finishes check the console to make sure it was successful.
 
[[File:STM32STLinkUtilitySuccessfulProgramming139FullDump.png|thumb|center|400px|Completely finished and successful programming.]]
 
==Reassembly==


Open STm32 STLink Utility and select the file.
{{Ninebot ESX Reassemble Internals}}


[[Category: Scooters]][[Category: Ninebot]][[Category: ESX]]
[[Category: Scooters]][[Category: Ninebot]][[Category: ESX]][[Category: STLink]]
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