All the info is on a french site so google translate is involved so I have not tried it.

I would not do it but you can try if you accept the risk of bricking your B525.

Can you post the link? I have B535. After contacting huawei "support" and do not get any proper answer - the only option is to upgrade soft to B525 version (but they are different kind of devices - cat5 vs cat6), or use DMZ mode.

So I guess I will try that, but I really think of buying a new - fully configurable (OS supported) router.

I never bookmarked it but it was on this website's forum


https://routeur4g.fr/

Bootstrap photo

https://i.postimg.cc/02GwNNwn/b525-bootshot.jpg

Its a cover off job.

urgh, reminds me of the inside of an old console......back in the glory days when everything wasn't too small to solder.

@kommando thanks, but I can't even translate this page with google translator

@buggerlugs yea now without an good hotair or IR you can;t even touch the hardware.

Here you go Henrix...

https://translate.google.com/translate?hl=en&sl=auto...

Just to state my experience which I trust will be helpful to those having recently acquired a B525 with firmware 11.190.61.01.1217. Firmware commonly installed on EE and other network supplied routers. This is locked to 4G mode so connecting a DECT phone will not work as it needs to drop down to 3G to take receive calls.

Get a copy of the readily available 11.189.63.00.1217 bin. With your router connected to PC via LAN cable do a local update. Find the bin file on the PC open up and run the update. No need for USB to USB, opening up router etc. On successful update you will see that under modes it now says Auto or 4G, 3G , 2G selection, when before was just Auto or 4G options. Plug in your phone and hew presto it now takes calls by dropping down to 3G.

Prepared to be shot down as new to the table but why cannot local updates via LAN be more widely used as opposed to USB to USB?

Probably a stupid question but here goes.
I won an auction for a B525s-23a that was supposedly unlocked only to discover on delivery it's locked to EE. The vendor refunded the £8.99 charge that's levied by EE to get the unlock code but their team are currently all furloughed. I've submitted a request via CS for a callback but so far it's not happening.
So would updating the firmware as described here remove the carrier lock or am I being daft?

Answering my own question, it seems short of following some dodgy looking youtube videos in Vietnamese language and installing a hacked firmware and running something called 1 Click Unlocker (which I don't intend to try as it probably installs all kinds of backdoors) then I'm out of luck.
Looks like I'll just sit on this B525 until EE unlocking team return, I expect unlocking second hand devices even for a fee is pretty low on the agenda for the skeleton staff still working during the lockdown.