Assuming a common Satlink workflow (adapt if vendor instructions differ):
Ahmed’s story had a happy ending. But his friend Karim wasn’t so lucky. Karim downloaded an “updated” firmware from a random Google Drive link. It flashed successfully, but afterward, the screen showed only garbage characters. The device became a brick—unresponsive to any button combination. No recovery mode worked. Karim had to ship the meter back to the factory for a $70 reprogramming. satlink ws 6933 firmware download updated