Dell Inspiron 3453: Backlight Adjustment Issue After LCD Matrix Replacement - Eprom Memory

Hi. I replaced the matrix in this Dell and the backlight adjustment does not work. I learned from the seller that this is the fault of incompatible eprom memory. He recommended me to either program it with the correct charge or solder it from an old LCD.
Fortunately, I have an old LCD. Please write me which systems should be moved, because they all differ from the replacement. Thank you in advance for your help.
Regards

Replace 4 with 8.

I'm doing it right now :)

Unfortunately, it did not help. Laptop does not turn on after replacing this item and beeps (POST). After soldering the old system, it turns on normally. Do you know what the problem is?

Nobody knows anything?

NT156WHM-N12 is a BOE 30-pin eDP matrix!
LED control driver HU = i.e. RT8510 (datasheet available) Link
- pin 5 of RT8510 is backlight control

How do you have:
- data exchange between the eeprom and the RT8510 (oscilloscope), and
- BLON signals, DP_HPD0 flap closing sensor (LID)
then look for damage (no voltage or ground) on the LVDS connector, ribbon or matrix



Signals necessary for the backlight to work

Quote:

DCBATOUT_LCD
GND
BLON_OUT_C
L_BKLT_CTRL

Such a matrix NT156WHM-N22 (* WEBCAM ver.) Used to be in Dell Latitude E5510 (Fonseca 15 MB 48.4EQ10.011)
* or normal eDP, 30-pin LTN156at08

Do you have the option to rip defects from the matrices?

I have programmers, can you tell me what kind of eeprom is sitting there?

Read from 24XXX chip.

If it were that simple, I wouldn't be writing. You have the name "GT 45A / 434" on the chip. Damage the system is the moment ...
Ps. all names are in the attached photo

How is the board described in this Dell Inspiron 3453?
How many pin. has "lvds" connector on the disc?

___________________________________________

Because the layout 3 and 7 look similar, the name HX8876-F is the Timing for matrix eDP controller
HX8872 for HD resolution matrix I / O: LVDS / MLVDS (eDP) / 2 Lane eDP1.2 / MLVDS
1366 * 768, CABC, 6 + Hi-FRC / 8bit, 25-90MHz 3.3V TQFP-64 / QFN-48
other
* HX8894 FHD LVDS / MLVDS 1920 * 1080, CABC, 8bit / 8bit + Hi-FRC
30-90MHz 3.3V TQFP-100 / QFN-68

then they cooperate with Eeprom eg AT24C08
Compare the pins of this board with the At24c08 application
See page 4 of the appendix (I recommend reading the whole one), i.e. the NT156WHM-N12 datasheet


GT 45A Link
* matrix b156xw04 v.7 30 pin eDP, with IC: GT41 / GT45A
_______________
The HT156WHM-N10 matrix has: HX8861-H QFN46
The HT156WHM-N12 matrix has: HX8876-F
HX8861-say it's the Novatek NT71263fg-300 counterpart