Help with Autel ms908 LCD issue

[alex_r_2001]

Hello friends I am looking to see if anybody on this forum has had any luck repairing there unit.. It has lines scrolling for top to bottom sometimes... Now more than often... I've looked for schematic with no luck.... has anybody been able to identify problematic IC ... I was thinking of reflowing some of the chips... but I rather at least have an idea of what part of the board can be damaged... Hey worst case scenario it stops working altogether.. I rather not reflow to many chip but if I have to I have plenty of equipment as well as ultrasonic cleaner... Any opinion are welcomed thankyou....

I do not think the display logic is to bad because when the screen is rolling I can still hook up hdmi and unit still works but that is alot of baggage as I mainly do mobile auto repair.. I have many backup unit but for some reason I really like using my autel scanner as it has many options available.... Thankyou blessed day...

[autoden]

They do not like the cold and damp. Take off back and use warm air, not hot. Then turn off by restart. good luck. P.S what does that mean "blessed day"?

[alex_r_2001]

Hello friends is there anybody that can help me out with this.... I installed new battery now scanner turns on a stays on but I still get rolling screen occasionally.... funny thing is if I but I freeze for a couple of minutes she turns on fine.... Only in summer temperature is that I get this issue.... Also I do not see any corrosion or cold solder joints anywhere. I'm using a digital microscope and do not see anything abnormal.... some schematic would be awesome like that I can identify problematic chip on board... but if anyone has had experience with these logic boards I would appreciate your input.... thankyou friends.....