[Windows 10, 8, 7, XP etc.] oeriel:
Some time ago I've bought Ployer MOMO9W tablet. It was "bricked" by disabling USB ports, and have installed Windows 8.1. But factory there was Windows 10. Someone tried to "back" to previous system. There, also touch drivers were wrong and can't be operated also by touch - so bricked. But I've recovered it. All was OK.

But... there was some my further going. I've found that this tablet have similar Onda V891w (not Onda V891). And this tablet has version of Dual Boot. I've tried to flash that BIOS, because many people said (on Chineese forums) that it will work. Yes, after flashing, BIOS was ok. Some things not worked, then I - in lack of time, wanted to go back, to "my" Ployer MOMO9w BIOS and stay on it. Accidentially I flashed wrong BIOS. All was ok, during restart.

Now the tablet has dying response.

I tried to flash it by USB or SD card. In this BIOS (Insyde) some people said that it have Recovery mode and can be back again by this method. Not using SPI Programmer. Only by copying BIOS file on USB and run device.

To start this procedure, I have to do some combinations, like: disconnect power (or even battery - this was for laptops, but this tablet have connectable battery), connect USB with BIOS, hold VOL+ (also version to hold VOL+ and VOL-), then connect power, and then press power button to run device. For laptops, combinations was on keyboard some like WIN+B, or Fn+Esc etc. But on tablet, without connecting keyboard it's quite impossible.

I don't know if I done something wrong, but instructions for laptops are different (combined key press on keyboard, connect power). In this tablet I have only 1 micro USB port. It's for charging, or for OTG. I used also Y cable which can in same time charge and OTG. There I can connect USB disk and connect power.

There is also NO HDMI to view what's going on screen.

This tablet now:

Give some reactions, because when I connect USB power cable it takes some power (used measuring device), and green diode at microUSB port flashes very shortly one time. Then tablet still takes some power, for about ~17seconds, and again, power down, and green diode flashes again.

When I hold power button, tablet sometimes power OFF, measuring device show no power drain,

When I connect USB or charging, it wakes up, and diode flashes again as above. Don't need press power, it starts automatically

Holding power, and trying to start it with VOL keys and power, seems have no effect

I had some reactions before, when tablet, when restarting, it reads USB (pendrive), because diode on it flashes, but flashed some times, and stops. And again, restarts, etc.

BIOS was: Insyde. File: MOMO.W89EBBN03

Wrong BIOS, was and modified version of this - MOMO.W89EBBN03, but I did not want flash this. In mistake, file was in Flash folder and there were no back and stop process. After that, I thought it was OK file.

Model: Ployer MOMO9W (Windows 10 single OS)

SN: P805: MO90W V03 32 1510.10C077

RAM: 2GB, HDD (eMMC) 32GB, Intel Atom Baytrail Z3735F

I have some original BIOSes, but I don't know if names are ok. Because to run Insyde BIOS Recovery, I have to put file on USB disk with proper name. It could be BIOS.fd, or BIOS.ROM, or W89EBBN03.fd/.rom/.bin etc. In some folders I have these files in BIOS pack:

H2OFFT-S.efi

MOMO.W89EBBN03.ROM

STARTUP.nsh

I attach some photos of internals around WINBOND (25Q64FWIG). And also micro USB port, where is diode, that flashes green (previously, when charged it was light still on red). So duo color.

Can you help me bring this tablet back to work? It's really good. Have fast Hynix eMMC (160mb/s read and 85mb/s write).

I've never used a SPI Programmer device, but I see that legs of this BIOS are short and could be problem, to hold it by clamp. But, if possible, I would like to nt use this tool (because I don't have it).

Similar tablet: Onda v891w, maybe someone with this device will help.

Thank you

----- E01

When I off the tablet, and connect charger (with measuring device), it's value is jumping from ~1A to 0,07, and then green diode flashes. I' connecting it directly, just to charge the tablet. No other devices, HUBs etc, just charging. When I flashed BIOS, on Windows 10 battery show ~56%. Now it seemt like it's restarting, because a lack of power. Question: Is battery "empty" or by flashing BIOS some parameters are not properly read?

Also, when I disconnect battery and charge cable, also directly, all is the same as at battery, but are a little bit different values.

Maybe that info helps someone to help me 0:)