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ZTE MF286D

Hi,

I'm about to pull the trigger on a CEX Three locked MF286D.
My plan is to flash OpenWRT and try Smart Queue Management in the form of CAKE w/ Adaptive Bandwidth.
But I digress...

Could you please clarify what was the exact cable that worked for you? (Perhaps with a link?)
There are 5.5V and 3.3V version mentioned but I'm a bit lost and there is a serious chance of bricking the device using incorrect wiring.

Edit:
Okay, so you know the feeling when you ask a question and find the answer 5 mins later? Sometimes I wonder, if you need to ask the stupid question first just to kick your brain (Google searches) into gear...
Gandi69 already created a guide on the process and mentioned the cable used:
PL2303 cable to usb
and the voltage is 3.3V
Still a bit unsure on the exact cable type (several results show up such as breakout cable, etc) but this should be enough to find the correct one.
You don't need to cable flash anymore.
Have you got a Windows PC?
 
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Hi,

I'm about to pull the trigger on a CEX Three locked MF286D.
My plan is to flash OpenWRT and try Smart Queue Management in the form of CAKE w/ Adaptive Bandwidth.
But I digress...

Could you please clarify what was the exact cable that worked for you? (Perhaps with a link?)
There are 5.5V and 3.3V version mentioned but I'm a bit lost and there is a serious chance of bricking the device using incorrect wiring.

Edit:
Okay, so you know the feeling when you ask a question and find the answer 5 mins later? Sometimes I wonder, if you need to ask the stupid question first just to kick your brain (Google searches) into gear...
Gandi69 already created a guide on the process and mentioned the cable used:
PL2303 cable to usb
and the voltage is 3.3V
Still a bit unsure on the exact cable type (several results show up such as breakout cable, etc) but this should be enough to find the correct one.


This is interesting, would you care to elaborate more?
 
You don't need to cable flash anymore.
Have you got a Windows PC?
Oh really? That would be awesome.
Yes, got Windows 10 on both PC and Laptop setups.
tftpd64 already tried and tested.

Also Debian on a Linux machine with working minicom terminal I've used for serial connections.
 
This is interesting, would you care to elaborate more?
Not sure if relevant to this topic, but happy to elaborate.

The premise is the following:

The given situation is an urban area without any decent landline options. (5-9 Mbps down on a copper run, upload even worse)

Opted out from the broadband and purchased a Three unlimited SIM and Huawei B535 separately from eBay. (For some reason not even mobile broadband is available in my postcode)

The Huawei device was a proof of concept solution which seems to be working as download speeds can reach 40-50 Mbps, even with evening congestions it can sustain a 20 Mbps speed.

However, bufferbloat is serious on my network. Noticed it in some online games, and while I'm not serious about gaming it gave me a problem which I want to solve.

Based on my searches, Smart Queue Management is a possible solution. QoS and Rate Limiting can work to some extent (tried it) but there are some serious drawbacks. I'd rather not limit the "media" network to a set upload/download speed while in some cases it could benefit from the full network speed of 40-50 Mbps.

As it turns out, I'm not the only person with this issue, and some really talented people created and open source project to adapt the originally rigid (you set a baseline and max speed, based on your line speed, guaranteed minimum, etc. ) SQM solution to LTE networks.

The MF286d is supported by OpenWRT with some documentation on how to get it working. My plan is the following:
  • Get a cheap OpenWRT supported LTE device (ZTE MF286D)
  • Flash OpenWRT based on the documentation
  • Install adaptive SQM based on related GitHub page
  • Work with the open source community to test the results and fine tune it.
  • Play games without lag spikes? (So I can blame my skills again)
 
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Other things to mention, use lan port 2,3 or 4 to upgrade to openwrt.

Openwrt changes lan 1 into a wan port in default configuration.
By the way - does this also remove the carrier locking also? (i.e. currently locked to Three)
 
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So i can just flash this with windows? does it have the web interface? im a novice at this haha, i think im using the modem firmware which b32 doesnt work with currently
If you flash this, there's no way back without opening the case.

There's a web interface, though it's not user friendly.

Your current modem firmware supports b32, but the current web interface doesn't allow you to select it.
 
If you flash this, there's no way back without opening the case.

There's a web interface, though it's not user friendly.

Your current modem firmware supports b32, but the current web interface doesn't allow you to select it.
ah, think i will leave it be then, thanks :)
 
Just in case anyone is interested, I've been having a probe around the external antenna ports for the router and can confirm that attaching an external antenna to any one of the available ports will physically disconnect the internal antenna.
 
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