NOKIA 5233 LCD pinout - Page 1
Forum section: electronics / general

author: Dom13c
author_rank: Regular Contributor
timestamp: December 26, 2021, 10:54:23 pm
content: Recently I have found my old NOKIA 5233, from the corner of a drawer, after being declared backdated 5 years ago.Now that I have stepped my feet onto the realm of digital electronics as well(after tinkering with RF for 3 years), I wanna use the display of the phone and it's touch digitizer in a project that uses a PIC18F4550. But I'm unable to find any data about the LCD/ touch digitiser pinout and the LCD driver IC datasheet .Maybe the board is dead as the LCD backlight turns on but not the display(or maybe the LCD itself is dead) so reverse engineering it by tracing the signals is a no no. From what I can see through google searches is the LCD and the digitizer is available on many websites for as little as 3/4$ each, separately, as spare parts. So, even if the display I have turns out to be bad I can still get hold of such a display easily.Does anyone have any clue about these displays, their pinouts and their driver IC datasheet?I've attached a picture of the back of the LCD for reference, if that helps.Edit : The LCD image somehow rotated 90 degrees. My apologies for any inconvenience faced.

author: DavidAlfa
author_rank: Super Contributor
timestamp: December 27, 2021, 10:43:56 am
content: I played a lot with these about 10 years ago.Check the schematic:https://elektrotanya.com/nokia_5232_5233_rm-625_v1.0_sm.pdf/download.html#dlThat display uses MIPI (differential pairs), not DIY-friendly.You have a similar lcd from Sony Vivaz:https://andybrown.me.uk/2013/10/19/vivaz-u5-lcd/Also samsung S5230:http://brne.narod.ru/s5230.htmSmaller Nokia screens (128/160px) useSPFD54124B, while 320x240 useMC2PA8201.Their command set is almost identical, the main difference is 18-bit (SPDF) vs 24bit(MC2PA) color support.The connection is not simple, you'll require a dual power supply 2.8V(VCC/VCCA) and 1.8V(VCCI) and a voltage translator like 74LVCH245A.The connector is 24R-JANK-GSAN-TF, not easy to solder either.N95 LCD was also covered by Andy, however he connected everything to 3.3V, not the best thing to do:https://andybrown.me.uk/2013/01/26/nokia-n93-lcd/I attached a basic library I made back in the day for pic32. Very basic coding.

author: DiTBho
author_rank: Super Contributor
timestamp: December 27, 2021, 10:53:57 am
content: Quote from: Dom13c on December 26, 2021, 10:54:23 pminteresting

author: Dom13c
author_rank: Regular Contributor
timestamp: January 03, 2022, 02:12:36 pm
content: Quote from: DavidAlfa on December 27, 2021, 10:43:56 amLooks like I need to get myself a 32bit PIC or a STM32 board and a few hardware bits for playing with these LCDs. Truly appreciate your help in providing all these useful links and the library that you wrote.

author: DavidAlfa
author_rank: Super Contributor
timestamp: January 03, 2022, 03:27:21 pm
content: Oh, nope! The library is very simple, just dumps data to the IO ports, no fancy peripherals, DMA...You can run the code on anything, only requirring to modify the functions that interface the hardware (LCD_write and such).The speed will be very different, but the functionality will be the same.Have a look at the code, you'll find it's very simple