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STM32F405 card blocked !!!
13-01-2023, 07:50 AM, (This post was last modified: 13-01-2023, 12:42 PM by Clusters.)
Post: #1
STM32F405 card blocked !!!
Hi friends 

The hex v2 32F405 suddenly crashed, when launching the software it wanted to do a firmware update then i received a message telling me that the card is locked or blocked. 

I tried an old and new VII loader but alas that didn't solve the problem. That's why I'm asking for your help friends, please. 

How to bring this cable back to life ? 

Thanks in advance and respect.


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13-01-2023, 08:07 AM,
Post: #2
RE: STM32F405 card blocked !!!
Uninstall and delete all Rosstech and Loader files present on the computer (check Program Files, ProgramData, etc.).
Use CCleaner to clean registrys.

Disable internet connection, install VCDS, install Loader and update your firmware.

After this it will work, but you need to block Inboud/Outbound internet connection for VCDS to avoid this kind of problems.

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13-01-2023, 10:23 AM,
Post: #3
RE: STM32F405 card blocked !!!
(13-01-2023, 08:07 AM)audi666 Wrote:  Uninstall and delete all Rosstech and Loader files present on the computer (check Program Files, ProgramData, etc.).
Use CCleaner to clean registrys.

Disable internet connection, install VCDS, install Loader and update your firmware.

After this it will work, but you need to block Inboud/Outbound internet connection for VCDS to avoid this kind of problems.

Hi dear Audi666 

Thanks for the instructions, i am using a windows 7 x64 PC dedicated to diagnostics, no internet connection possible, no antivirus. 

Will try to follow your instructions and see if it works, will share the result... 

Thanks.
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13-01-2023, 11:23 AM, (This post was last modified: 14-01-2023, 09:02 AM by BS68.)
Post: #4
RE: STM32F405 card blocked !!!
I followed the instructions of Audi666, clean all registers with Revo, the entry and exit are already blocked but unfortunately still no joy. 

Thanks anyway dear friend for your support.


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13-01-2023, 11:54 AM,
Post: #5
RE: STM32F405 card blocked !!!
Try to downgrade with an older version of Loader.

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13-01-2023, 18:38 PM,
Post: #6
RE: STM32F405 card blocked !!!
hi, turn  off defender, antivirus, delete folder install in drive C, now you need to install older version to  make upgrade of firmware.. 
if you don t  know how to turn off defender and antivirus on win7, Youtube is your friend.. good luck!

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13-01-2023, 20:31 PM,
Post: #7
RE: STM32F405 card blocked !!!
(13-01-2023, 18:38 PM)jhon006 Wrote:  hi, turn  off defender, antivirus, delete folder install in drive C, now you need to install older version to  make upgrade of firmware.. 
if you don t  know how to turn off defender and antivirus on win7, Youtube is your friend.. good luck!

Hi friends 

Thank you for the useful info dear Jhon006, my defender is completely disabled + in the registry. No internet connection. 

I installed an old version, new version, middle version smile with all versions i can update the firmware by seeing the flashing blue but in the end i still have the cable blocked. 

I see an 8 pin eeprom type chip on the back of the board, not visible in other stm32f405 boards. The chip is erased, could it be a memory with a counter ? 

Too bad i can't find an original firmware to write to the stm with a v2link. Any help would be appreciated. 

Thanks.
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14-01-2023, 17:31 PM,
Post: #8
RE: STM32F405 card blocked !!!
iive had the same problem i bought a new one
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14-01-2023, 17:39 PM,
Post: #9
RE: STM32F405 card blocked !!!
(13-01-2023, 20:31 PM)BS68 Wrote:  
(13-01-2023, 18:38 PM)jhon006 Wrote:  hi, turn  off defender, antivirus, delete folder install in drive C, now you need to install older version to  make upgrade of firmware.. 
if you don t  know how to turn off defender and antivirus on win7, Youtube is your friend.. good luck!

Hi friends 

Thank you for the useful info dear Jhon006, my defender is completely disabled + in the registry. No internet connection. 

I installed an old version, new version, middle version smile with all versions i can update the firmware by seeing the flashing blue but in the end i still have the cable blocked. 

I see an 8 pin eeprom type chip on the back of the board, not visible in other stm32f405 boards. The chip is erased, could it be a memory with a counter ? 

Too bad i can't find an original firmware to write to the stm with a v2link. Any help would be appreciated. 

Thanks.
hi, did you connect the cable to the laptop and the obd port when you update the cable?  did your usb port is reading cable on device manager? if no, install it again! 

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14-01-2023, 20:13 PM,
Post: #10
RE: STM32F405 card blocked !!!
You should install the VCDS version and loader that came with it.
If it still doesn't work then the problem is elsewhere.
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