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The DR400G would get a GPS signal within 30seconds of seeing the sky and has better video quality than the 650. Only down side is no Wifi. I'm thinking of contacting the person I sold it to and trade.

I had the a similar issue. You need to use the custom downgrade firmware to 1.005 which deleted everything. Then go to 1.009

So today it randomly locked on the GPS. V1.009

Set it to 12V

7Hrs with V1.007 = NO GPS 24Hrs with V2.002 = NO GPS

2 times. I left DR650G-2CH outside for 9-10 hours with iOS V1.009E. GPS did not locke (Only front camera) I will now try to V1.007.

My old DR400G had higher quality video recording at night and day. GPS always worked. DR650G night time quality is kaka and GPS stopped working the second I upgraded the firmware. Only advantage is the wifi feature.

Thank you!

Thank you. Do you have 1.006, 1.007, 1.008 ? I'm probably going to try all of them lol

I have two channel DR650-2CH it should be simple to modify the firmware to be compatible with the new revision. it already donated and I'd be happy to donate more. if he won't do it, I'll sell my camera. The firmware makes the camera quality at night go from GARBAGE to AMAZING!

Where did you find V1.004? I would like to try it.

Is there going to be a Custom Firmware for the new DR650-2CH after April 2015?

Sooo Stock Firmware . I WISH I didn't upgrade, had GPS and everything work. i don't know what version it was. Upgraded to V1.009 - LOST GPS Upgraded to V2.002 - NO GPS Downgraded to V1.009 - NO GPS Upgraded to CUSTOM 1.5 Firmware - NO GPS OR Rear View Camera Upgraded back to V1.009 - NO GPS...

Thank you for the write up!

Right here https://dashcamtalk.com/forum/threads/how-to-install-the-custom-firmware-1-5-to-dr650gw-2ch.9849/

Update: So I've downgraded back to Stock V1.009 and my rear camera works now but quality is kaka compared to custom. specially at night. I still can't get the GPS to lock on. I tried to sync the time from the SD card, from the app. Changed the Time Zone to Canada\Toronto or USA\New York. Still...

Waiting for new version of the custom firmware as the current one disabled the rear view camera. Any ideas how to fix the GPS ? I've been trying for days.

I recommend against V2.002. The quality is terrible compared to V1.009, if you do not have a hot spot in your car and lots of data to steam your dash cam, it's really a downgrade. Check if maybe your camera is to old to accept V2.002. Supposedly the first batch is not compatible

Where can you get the V1.003 for Dual Channel? I've looked for it. The Custom firmware gives very good quality but the rear view camera doesn't work on any 650 made after April 2015.

I think it has something to do with the time stamp after I upgraded. It thinks I'm in Korea. I just donated and tried the custom firmware. The rear view camera stopped working and now I'm trying to downgrade but I'm getting errors. I think i need to SSH into the dashcam and change the time zone...