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Author Topic: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)  (Read 65370 times)

asbokid

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #90 on: March 22, 2013, 02:08:01 PM »

Hi Les,

It is added to the TODO list.  What are you using to measure wireless output?

cheers, a
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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #91 on: March 22, 2013, 05:20:17 PM »

  Hi,

   I have only been able to use inSSIDer and the Wireless connection utility.  I suspect inSSIder is best if all you have are wireless cards and adapters and no RF test equipment.  I think inSSIDer is adequate for rough relative measurements.  The dramatic difference between pressing into the connector by J7 vs that by J8 certainly does not need anything more to show it.  When I made the MS156 connections to RP SMA I took no change when an antenna is screwed in and out to mean no signal. 

  One uncertainty that I have is how dual antenna systems operate, in terms of whether they always keep both both antenna powered up?
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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #92 on: April 05, 2013, 04:07:07 PM »

 Hi asbo,

   Is the test of pressing into the MS156 still on your todo list?

     By the way the HG622 is still my favorite modem.   It has been interesting comparing with the HG612.   Main difference is the time to achieve sync and what I guess is the time for the DHCP service. I power down overnight and use standby quite a lot.  I never have to wait for the internet with the HG622, everything works as soon as I can login or the moment I come out of standby.  With the HG612 and other modems there is always an annoying delay before web access is there.  Does the HG622 have some faster components or is it just different?
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broadstairs

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #93 on: April 12, 2013, 12:20:58 PM »

Just thought I'd say that my HG622 has now been up for 70 days and DSL connected for 63 days which I think is excellent. SNRM drops to around 3db at night and goes up to around 7.5db in daytime on a line with 42db attenuation.

Stuart
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GigabitEthernet

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #94 on: April 12, 2013, 09:33:07 PM »

Any more of these coming soon, asbokid?
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asbokid

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #95 on: April 13, 2013, 12:35:50 AM »

Hopefully, arobertson!  There is a different firmware coming with a bootloader that might calibrate the wifi transceivers better.  Or that's the theory.  What is it with bootloader problems?!  Unlocking the ECI vg3503j /r (the newer of the Openreach VDSL2 modems) is hitting the buffers because of a locked bootloader problem.  [1]

As for the Huawei though, yes there should be some more soon :-)  It is planned to sell them in aid of a different charity - Guide Dogs for the Blind.  Does that meet with others' approval? Hopefully I will get the lounge back once they're sold :-)  Someone peered in the window the other day and said to her mate: "don't think anyone can live there - look at all the boxes!"

cheers, a

[1] https://dev.openwrt.org/changeset/36315

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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #96 on: April 16, 2013, 12:51:26 PM »

  A question from a novice!  Is the bootloader updated with any firmware updates or does it remain in place unless updated with e.g. a specific CFE> command?  If not is JTAG access needed to change the bootloader?
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asbokid

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #97 on: April 16, 2013, 03:16:25 PM »

Hopefully, the bootloader can be replaced by including it in a firmware image (along with the rootfs and the kernel).  I've never actually tried that since you have to re-flash it via JTAG if it goes wrong.  It's certainly possible to JTAG the bootloader.  It takes many minutes though. Here are a few notes on re-flashing a 6368-based device using JTAG. [1]   The 6368 doesn't behave itself so it's necessary to manually define the JTAG registers and instructions for the SoC. Nothing ventured, nothing gained though :-)   

cheers, a

[1] http://huaweihg612hacking.wordpress.com/2012/11/07/jtaging-the-broadcom-bcm6368-hg612/
« Last Edit: April 16, 2013, 08:22:10 PM by asbokid »
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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #98 on: April 17, 2013, 07:10:23 PM »

   As you say nothing ventured nothing gained, I have a usb blaster on order and using your guide will have a play on an old HG612 to further my education as a long term insurance against bricking things. I am not keen on wrecking my HG622 at the moment and it is not worth even trying without a different bootloader to use!

   I assume a bootloader  update is also possible with a CFE> flash command if you know what your doing - which I don't.  However as you say if anything is wrong and there is only JTAG left.
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burakkucat

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #99 on: August 03, 2013, 08:09:48 PM »

The b*cat is known to occasionally prowl around the back of eBay, sniffing the aroma that emanates from the bins . . .  :blush:

Having just returned from such a foray, I'll mention that there is a Huawei HG622 modem/router currently up for auction.  :)
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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #100 on: December 01, 2013, 11:26:24 AM »

  I still have not managed to get the HG622 USB port to work as an LAN or WAN FTP server for a memory stick.  An FTP server is not much use compared to a NAS drive but has anyone else had a go at that yet. 

  In case anyone is interested the answer is easy and should have been obvious to me.  Just add a rule under ACL on the firewall for ftp access.  Obviously safe on the LAN but needing more caution if enabled for the WAN.   
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les-70

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #101 on: January 29, 2014, 01:16:23 PM »

  I am not sure if it good practice but I have crossed posted this here so that this subject contains the main info on the HG622. 

 On a HG622 I have been trying dynamic blob swapping between 030 orginal Hg612, the 033-normal Hg622 version, "new" blob 035 and the latest 038. I followed Asbokid's HG612 guide to this.

    The HG622 does not support TFTP to move things in and out but if a usb stick is inserted it is mounted in the file system and facilitates very easy transfers.  I can swap between 030, 033 and 035 and they all work fine in the HG622, 035 may be a bit better that 033 but nothing dramatic.  However with 038 I get "Segmentation fault" on starting it.

  # xdslcmd start --up
  Segmentation fault
  #
 I assume 038 has structural differences that the others lack.   

   In my linux ignorance I think a segmentation fault is not an easy thing to fix up!! any contrary advice would be welcome. I  wonder whether also swapping other adsl bits at the same time might solve the issue, that might however just add more problems.
« Last Edit: January 29, 2014, 07:54:33 PM by les-70 »
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GigabitEthernet

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #102 on: August 15, 2015, 12:43:22 AM »

Is anybody still using this? :)
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burakkucat

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #103 on: August 15, 2015, 01:05:46 AM »

Is anybody still using this? :)

Yes. It is my current modem/router of choice.
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GigabitEthernet

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Re: Huawei HG622 VDSL2 Modem/Router (Broadcom BCM6368 Chipset)
« Reply #104 on: August 15, 2015, 01:10:05 AM »

I have just ordered one :)
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