LCD touchscreen calibration not working / A20 lime2-4gb

[AnkyB]

Hi,

We are using Newhaven NHD-7.0-800480EF-ASXN#-CTP LCD Touchscreen on A20 Lime2-4gb with legacy kernel image(Desktop). We have made following changes in script fex file

[ctp_para]
ctp_used = 1
ctp_name = "ft5x_ts"
ctp_twi_id = 0
ctp_twi_addr = 0x38
ctp_screen_max_x = 800
ctp_screen_max_y = 480
ctp_revert_x_flag = 0
ctp_revert_y_flag = 0
ctp_exchange_x_y_flag = 0
ctp_firm = 1
ctp_int_port = port:PH0<6><default><default><default>
ctp_wakeup = port:PI00<1><default><default><1>
cto_io_port = port:PH00<0><default><default><default>

[ctp_list_para]
ctp_det_used = 1
ft5x_ts = 1
gt82x = 0
gslX680 = 0
gt9xx_ts = 0
gt811 = 0

using this script file touchscreen was working perfectly but after few days suddenly touchscreen stoped working and just touch on its right side that is ( y axis) is working.

so we tried calibrating it using xinput calibrator tool. whenever we try to calibrate, it changes mouse pointer access but touch is not calibrating 

How to solve this problem ?

[LubOlimex]

If it was working fine and then half of the touch stopped working, then I would suspect some sort of hardware problem. Probably lose cable or connection. Did you try to disconnect all cables between the board the display and the touch and reconnect them properly again?

[AnkyB]

Yeah we did check its connection, its perfect. And also tried disconnecting it and again connected, still giving same thing