Thx for help guys but still no luck.

@ESP_Sprite
Yep, all those pins are not connected.

@chegewara
Similar problem here. Same code works on identical board with old modules and not on ones with new modules. I am using WROVER-B veriants.

@WiFive
Yes there is the problem(with PSRAM). ESP32-WROVER ...

Hi, guys any ideas? Still stuck with the same problem.

Hi, I have tried to compile with ESP-IDF v4.1, but with no luck. Sill same problem.

Rebooting...
I (10) boot: ESP-IDF v4.1-beta2-141-g84b51781c-dirty 2nd stage bootloader
I (10) boot: compile time 15:55:17
I (10) boot: chip revision: 1
I (14) boot_comm: chip revision: 1, min. bootloader chip ...

Hello, Sprite.

I did FASTRD with flash download tool v3.8.5 on both batches, and they both read:

flash vendor:
C8h : GD
flash devID:
4017h
QUAD;64Mbit
crystal:
40 Mhz

Pictures of the log are attached, as are pics of modules with removed shield. If you look those pics you will see the same ...

I have hardware design based around ESP32 and SD card(among others). User selects application from SD card that preloads into ESP32. The problem is that some apps don't start because they can't initialize external PSRAM, others that don't use external PSRAM work fine. There is UART output attached ...