So I have a TP-LINK TL-MR3020 v1.9 (SoC AR9331-AL3A). It had a Zentel A3S56D40GTP-50 RAM chip (32 MB). I decided to upgrade it to 64 MB RAM and decided to buy a Hynix HY5DU121622DTP-D43 chip after seeing the wiki for the 64MB mod for the TL-WR703N. I'm not an hardware expert but the specs between the 2 RAM chips seemed equal (protocol used, voltage etc) so I decided to go for it and replaced it today.
Needless to say the router seems bricked. The power led stays ON forever (it never blinks) and the reset LED blinks only once at the very start.
Is the Hynix HY5DU121622DTP-D43 incompatible for the TP-LINK TL-MR3020 v1.9 model? The soldering was done by a professional and was checked under a digital microscope.
Did any of you upgraded the RAM of yours too? If so which chip did you use? Thanks in advance.