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GT1 Ultimate Hardware Variations

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Post time 2017-04-29 10:03:34 | Show all posts |Read mode
While we've lamented the two different wireless chipsets used in the original GT1 (AMPAK AP6255 & Qualcomm QCA9377), there seems to be even more variation in the internals for the GT1 Ultimate.  For example, when I received my GT1 Ultimate yesterday, I was initially glad to see that I got the same S912DDR4 3G/32G configuration that Superceleron received.  In truth, however, I received a much different unit.


Mine:
eMMC : Samsung KLMBG4GEAC
Wireless: Longsys LTM8830

DSC00656.jpg

Superceleron's:
eMMC: Sandisk
Wireless: AMPAK AP6255

2017-04-28.jpg

And who knows what different components they may have for DRAM, but I didn't want to remove the shield to find out.

Interestingly enough, these still use the same motherboard:  GT-G-V10_20161015

Also, the circled pins on Superceleron's board are the ones we short to enable Mask ROM Mode, something essential for reseting a unit after a bad firmware flash.  This works on Superceleron's board, but not mine.  What we suspect is that
Beelink used the same PCB,
changed the NAND eMMC chips,
but forgot that the mask mode on diferent brand chips have diferent pins.


So, my question for Beelink is:  How are we supposed to create custom firmware for this SKU when you have so many internal variations in hardware?  And can you help us simplify this effort so that there are fewer permutations and inconsistencies?
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Post time 2017-05-03 06:46:48 | Show all posts
Hello Beelink, please help by replying to Magendanz.
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Post time 2017-04-30 09:06:02 | Show all posts
Magendanz, I also opened my box and it is identical to yours, I am hoping for a reply from Beelink, as I cant wait to use my box.  
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 Author| Post time 2017-04-29 11:12:43 | Show all posts
BTW, there's another set of pins identified for entering Mask ROM Mode here, but this also didn't work for me:

http://freaktab.com/forum/tv-player-support/amlogic-based-tv-players/s912/636941-beelink-gt1-ultimate-short-pins

image_22884.jpg
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Post time 2017-06-04 03:01:21 | Show all posts
Hi, I have the G912 GT1 Ultimate box. I also need to know how to short the pins on my box for mask mode. Bee-Link please reply. Its a new box and bricked. I can't do anything with it like this. Please help.
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Post time 2018-01-28 18:20:57 | Show all posts
I've got A912 2/32 and I thought I have AP6255 chip until I decided to change stock 113 firmware to 707N0.
After that I had a problems with bluetooth audio stuttering.
And then teardown the box revealed that chip in my A912 is LTM8830.

any suggestions, where to obtain a proper firmware?
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Post time 2018-01-28 20:29:07 | Show all posts
barmalei replied at 2018-01-28 18:20
I've got A912 2/32 and I thought I have AP6255 chip until I decided to change stock 113 firmware to  ...

Problem solved with firmware for S912.
http://www.bee-link.com/forum.php?mod=viewthread&tid=27104

In my case, the s/n label was started A912 but inside there was a S912 2/32Gb model board.
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