[apoelistas]

Read previous threads exactly like my 2012 vas5054a (same board date even leg  2 of Oki is cut), Good quality 2012 but needs some rework and an amb2300. No amb2300 but there is no amb2300 available any longer. It was replaced by amb2301 (has same id) and I have never seen one on vas5054a. It was reported that one Chinese Bluetooth can upgrade downgrade, so check if it works with 4.3.3. Haven't checked mine yet. If you are lucky you don't need amb2300.

Even if  most sellers advertise vas5054a with amb2300 the Bluetooth most probably will be Chinese clone even if it is camouflaged as amb2300.

Looking forward for amb2301 (but we need in addition the Bluetooth pcb too)

Try to change pc date if it was expired or use an app for running an application at a previous date. (Runasdate)
Here are the photos again. For rework check Fantomel rework photos on vas5054a. The 2 boards are the same.

https://cartechnology.co.uk/showthread.p...905&page=7




               

Original tja1040 has tja in front. Change this to TJA1050. A5780a I believe is original so less rework, also correct direction is installed. The other thing I would change on this side is the resistor R500 to R680. Note 5R60 is correct. The fantomel diagram, who has provided the rework design, should say 5.6ohms not 56ohms, so 5R60 resistor is fine and should not be unsoldered (a dot is missing). 1977 should be replaced for a 1976.