Help PLDT Home R281 nag update ng Software Version (v004.1). Openline di na gumagana.

[Silver Dawn]

Nag update ang PLDT Home R281 and hindi na gumagana yung openline na AT+CLCK="PN",0,123456,16
Error na ang nakalagay.
Also, openline na sana ako kaso after the update RED na ang signal. Kaya nag system restore ako planning na i-openline ulit kaso error na yung AT+CLCK="PN",0,123456,16
Any solution?

 

[EugeneKey]

A couple of days ago, the router was updated and everything broke. The speed has become 1-2Mbps, before that with lockband it was 60-70mbps. I do not understand what is the point of such sabotage, they sell their routers, claiming that they have become even faster, but they prohibit choosing a band, as a result, all users use one overloaded band and hate pldt because of the low speed.

So I decided to see how the router works a bit. I was able to get root access to 192.168.8.1 via ssh when connected via usb.
Ok, I got root access to openwrt, but it seems I cannot change nothing. As far as I understand, two different configs are used, and from the debug we cannot access the main one. If you connect to 192.168.8.1 via usb, you will see that the interface is different and the service firmware = P28M26HAPLDT_CP_R281_V002.1
The main firmware if you connect to the router via WiFi = P28PLDT_AP_R281_V004.1
As you can see, these are different firmware and having access to the service firmware, you cannot change the main one.
How it is physically organized, I do not know, perhaps it works through some kind of virtualization, two firmwares simultaneously work in isolated containers.
The router is arranged like this, the WiFi router with OpenWRT and external LTE modem on a Marvell PXA1826 chip is connected via PCI-e

The service firmware only allows is to access the LTE modem device and send AT commands to it.
After last firmware update, some AT commands are still being works, for example info command AT+ZNLOCKBAND=?
But commands for get or set any options don't work. This may be due to changes in the router firmware, or due to a change in the lte-modem firmware. In the second case, häçking will most likely be impossible.
In the first option, one of the directions for further häçking is get /bin/atcmdsrv form old firmware, replace it and use to send AT commands.
The second option is to disassemble the router, get the lte modem out of it and connect it directly via the pci-e connector to the computer and try to somehow get access to this device or send AT commands to it directly.
Perhaps something can come of it.

To get root access use this command in console or use any ssh client such as Putty:
ssh root@192.168.8.1
with password:
notion

 

[Daigo26]

So is it possible that when I locked band 3 as first band with the cell 178 and freq of 1775 it will not use the band 28 as the second band?

 

[Elbytex9419]

Yan sinasabi ko sa inyo e delete niu habang hindi pa nakikita ng agent ng pldt at mga pa fame kaya yan tuloy 2.2 na baseband version wala na openline again haha ang bilis ng ρá†ch dami agent ng pldt cgurado ako nandidito rin sila keep this thread/topic alive sana may makahanap ng auto disable ang update ng r281 meron na dito sa thread naka modify ng firmware ng r281 sana magawaan niu paraan bagong version 2.2

Kailangan talaga ma disable TR069 ng r281 para di ma remote access ng pldt at auto update nito the best parin makahanap ways debrand nito keep this thread alive

 

[nasb]

@Silver Dawn..White mamba/B525-65A . Naka Latest firmware 2021.

san mo nabili boss?

 

[threnzsho88]

@Elbytex9419..im not eugenekey but feeling ko po, highly probable na yes, parang monitoring po kasi yung tr069 so if walang data na nassend kay smart or namomonitor niya then it is as good as a rouge / independent modem

hello boss alam ba kong panu paganahin yung bandlocking using android phone? sabi ni 1MPACT2 using termux daw kaso offline pa sya hindi ko alam anong unang e setup

 

[oblivion85]

sir oblivion pde pa send din sakin ung firmware image para makapag rollback din. thanks!
macacero008@gmail.com

Sorry po, hindi pa po ako nasendan ng file. Request ko lang din po yun i hid my email address lang.

 

[James pyu]

Salamat sir

 

[Silver Dawn]

May available solution po ba ito?
Pwede ba tayo mag downgrade ng software version to v004 ulit?

 

[diegomaniego]

Same here.

Last week pa nag auto-update yung PLDT R281 Boosteven modem ko after ng major update ng Windows 10 Version 20H2.

May missing Marvell DEBUG driver sa Device Manager, hindi na compatible sa Huawei Modem Terminal.

1 week na din ako naghahanap ng solution, wala pa rin akong makita, kahit driver update ng Huawei Modem Terminal wala din ako mahanap.

Anyone has a solution or fix, please post it here. Thanks!

 

[lekiz121]

wala na din solution jan sabi ni madam, sayang naman mura pa naman R281

 

[cybercurochan11]

sa akin na naka v4.0 nagttrigger yata yung update kapag nakaconnect sa lan cable, buti ginagamit ko lang sya as wifi

 

[diegomaniego]

Thank you for this info!

 

[JohnTrung]

I have the same problem..

 

[ambushzeefreak]

Sayang naman tong R281 ko kabadtrip si PLDT dapat may rights tayo kung ano man gusto natin gawin sa item. Binili naman natin to di nirerentahan.

 

[JohnTrung]

I found out this one.
Take out the sim card then connect the router to PC using micro usb.
Access 192.168.8.1 with
User name: admin
Password: admin
We can see the upgrade function. It means if we have the previous software version we can roll it back.

But, I think it is hard to have one since it is not public releasing.

 

[diegomaniego]

This is great! Thanks!

Still hopeful we can downgrade to previous firmware

Keep this thread up to date!

 

[jefreyabanilla2]

hello po.

If okay lang sana maghingi ng configuration mo?

Bale punta ka sa login ng pdlt>Router na Tab>System Setting>Configuration Management>sa baba meron export configuration file. Ittry ko lang sana, baka sakali marestore yung modem ko.

 

[cybercurochan11]

nope baka need na ng firmware ng modem mo, hindi configuration

 

[sacredrhakz]

Paano mo to na access? Ayaw kasi sa 192.168.8.1 sa pc