How to wire button for factory reset?

[Ketsayay Choohirun]

Dose it need a Resistor?

[György Farkas]

@Ketsayay-Choohirun
No. You can connect - the right pins !!! - directly.
Please let me know if it helps.

[Ketsayay Choohirun]

OK, gnd to rst and 3.3 vin to fw rst then press (gnd to rst )10 second then release right? while press reset button led on board will off ? and after 10 second led on board keep blinking am I right?

[György Farkas]

@Ketsayay-Choohirun

GND to GND
3.3V to (VIN --- 3.3V)

BUTTON_1 to (VIN --- 3.3V)
BUTTON_2 to (38 --- FW RST)

Turn on Omega and during the boot time press the BUTTON more than 10 seconds.

I am fairly sceptical.
Good luck!

[Ketsayay Choohirun]

I think nothing happen when i pressed button, so now i bought usb to ttl with CP2014 chip and connected to omega and computer by using 4 pin (i use PuTTY)

omega2+ ------- usb
vin --- 3.3 v
gnd --- gnd
tx0 ---- rx
rx0 ---- tx
result is blink these :
Board: Onion Omega2 APSoC DRAM: 128 MB
relocate_code Pointer at: 87f60000
flash manufacture id: c2, device id 20 19
find flash: MX25L25635E

all the time . what happen to it?
here is video clip link : https://www.youtube.com/watch?v=lLD7kF-zbLI

[Chris Stratton]

You must not connect the 3v3 of the USB serial to that of the module, only the ground and data lines.

The 3v3 power to supply the Omega will need to come from something with a far higher current capacity than the auxiliary output of your serial converter.

[Ketsayay Choohirun]

Hello @Chris Stratton
I'm confused ,Does the only 3.3v one line from other source will power Omega?
I think 3.3v and gnd should come from the same source in order to power omega on, or i missunderstood something.
Could you write a schematic please.
sorry for my English ,i'm not good at English. Hope you understand me.

[Ken Conrad]

@Ketsayay-Choohirun You have an insufficient power problem. You can use another stronger 3.3 Volts power source with the Omega and have a serial connection. To also use the USB TTL unit connect together all three ground wires then connect only the USB TTL Rx wire to the Omega. DO NOT connect the USB TTL 3.3V wire to the Omega - that WILL damage the USB TTL unit.

[Ketsayay Choohirun]

@Ken-Conrad
I got it ,the result below and what should i do next?

 ____       _             ____
  / __ \___  (_)__  ___    / __ \__ _  ___ ___ ____ _
 / /_/ / _ \/ / _ \/ _ \  / /_/ /  ' \/ -_) _ `/ _ `/
 \____/_//_/_/\___/_//_/  \____/_/_/_/\__/\_, /\_,_/
 W H A T  W I L L  Y O U  I N V E N T ? /___/"

Board: Onion Omega2 APSoC DRAM:  128 MB

relocate_code Pointer at: 87f60000
flash manufacture id: c2, device id 20 19
find flash: MX25L25635E
*** Warning - bad CRC, using default environment

============================================
Onion Omega2 UBoot Version: 4.3.0.3
--------------------------------------------
ASIC 7628_MP (Port5<->None)
DRAM component: 1024 Mbits DDR, width 16
DRAM bus: 16 bit
Total memory: 128 MBytes
Flash component: SPI Flash
Date:Oct 18 2016  Time:17:29:05
============================================
icache: sets:512, ways:4, linesz:32 ,total:65536
dcache: sets:256, ways:4, linesz:32 ,total:32768
CPU freq = 575 MHZ
Estimated memory size = 128 Mbytes
Resetting MT7628 PHY.
Initializing MT7688 GPIO system.


**************************************
* Hold Reset button for more options *
**************************************


You have 40 seconds left to select a menu option...


Please select option:
   [ Enter ]: Boot Omega2.
   [ 0 ]: Start Web recovery mode.
   [ 1 ]: Start command line mode.
   [ 2 ]: Flash firmware from USB storage.

[Ketsayay Choohirun]

Ok i got him back ,i only have Omega2+ ,so i decided to do this:

Thank you very much for helping me
@Goyörgy Farkas
@Chris Stratton
@ Ken Conrad

[György Farkas]

@Ketsayay-Choohirun

Yes.

1. USB Host Port without a dock
2. Omega 2+ USB Firmware Install after Brick.

Do not forget a huge thanks to @Colt-Burns.

Congratulations. :slight_smile:

[Ketsayay Choohirun]

@György-Farkas But now i have some problem when i connected to power supply led on board keep solid about 5 sec and keep blinking all the and when it connect to network and after about 30 sec and turn off,what's wrong with my omg2.

[Ken Conrad]

@Ketsayay-Choohirun You are welcome. Probably nothing is wrong with your Omega - probably you have a power problem. Long thin jumper wires with loose connections at the Omega's pins will cause a dip in the power, just as the Omega needs more power (at least .25A at 3.3V) to turn on the Wifi.

You can use your serial connection to follow the boot progress so we can see when in the boot the Omega is halting.