Got my display using ssd1309, similar result with mcookieman.
Interesting - I just slapped in this SSD1309 display I got on eBay a few weeks ago, and got nothing at all. Verified the meter was working with the buzzer in continuity mode. Back to normal function once I pulled that off and put the original back on (you know, normal being can't barely see it).
https://www.ebay.com/itm/2-42-12864-OLED-Display-Module-128x64-SSD1309-Display-Screen-2-42inch-STM32/391868798461?ssPageName=STRK%3AMEBIDX%3AIT&var=660857088898&_trksid=p2057872.m2749.l2649I only just realised that you have the orange u1253b version. Is there any reason why you didn't just order the replacement part from Keysight?
@alexwhittemore I think this confirms that the part available from Keysight is compatible with the u1253a. ultrasmurf's photos look exactly the same as the u1253a display module.
The displays I've ordered off taobao seem to have gone missing, supposedly they've arrived at the reshipping address but I've gotten no notifcations. Will update when I find out what's happened to them.
I just looked at my display module to compare, and sure enough, they're nearly identical besides a couple of obvious BOM changes (mine has black tantalums, the B board has orange ones, but same values). My part number is U1253-66504-36-0848-8618, which has changed, and which is presumably why the support rep said he wasn't certain they're the same.
Cool that I can safely order the new part. But I'm not sure I want to spend $120 every few years until they finally deprecate that PN as well
I'll hold off until you try one of the taobao modules, $15 is a lot more palatable. But I had such poor luck last time I tried to get one...
Edit: since I've got a bunch of credit in yoybuy from the last failed order, I just ordered a few of the same modules. 4 of them are still wildly cheaper than even one OEM replacement, so if they work, I'll have a few spares.