I knew what touch panel was replaced because of the service report in which was a protocol of all changed parts. My 535 was sent to service three times. The first time they changed the device (new IMEI), the second time they replaced the touch panel with the NOK/TOUCH PNL CT2C1553-V3-E TRULY one.
then the 02060 update was published and I had to sent the device in for a third time, because of the lack of improvement. In this third repair report a touch panel replacement with a new ID was mentioned, the NOK/TOUCH PNL# CT2S1973-E TRULY. With that new touch panel generation, the device, respectively the handling of that device, improved a lot.
I do not know any possibility to identify the touch panel if it is not mentioned in any kind of report.
then the 02060 update was published and I had to sent the device in for a third time, because of the lack of improvement. In this third repair report a touch panel replacement with a new ID was mentioned, the NOK/TOUCH PNL# CT2S1973-E TRULY. With that new touch panel generation, the device, respectively the handling of that device, improved a lot.
I do not know any possibility to identify the touch panel if it is not mentioned in any kind of report.