Hi, any idea on why CelcomDigi Integrated network in the MRT Putrajaya Line tunnel section have poor RSRP and SINR? -7dbm for SINR and BLER reached 50%, speed is ranging from 1-2Mbps (SINR < 5dbm) to 300/400Mbps (if SINR > 20dbm). Been contacting Digi so many time since this issue happened but they keep give me robot reply.

(SINR -7dbm)


(SINR 25dbm)

Tried flight mode n times and restart , still poor SINR for this section (Sentul Barat - Hospital Kuala Lumpur)
After entering Raja Uda the SINR immediately increased to > 10dbm
This issue persist since the launching of MRT Putrajaya Line Phase 2
Unsure whether they aware of this issue or not (https://twitter.com/MRTMalaysia/status/1678209075270516737)

This post has been edited by Sam Leong: Apr 3 2024, 10:38 AM

Haven't try yet. Will try to do call test but iinm the I experienced quite many times drop call in this section before. Will do test and report to Digi. Thanks!

Not really, some of the area after CDG merge speed up like rocket (Prev 100+Mbps on Digi now 400+Mbps)

4G only also become faster nowadays , last time Digi didn't deploy 4x4 on B3 only B1 but now most of the merged tower have 4x4 on B1 and B3 and 256QAM on both band

Ur device doesn't support 4x4 and 256QAM or 4G+?
I rarely see places with merged tower don't have CA nowadays for CelcomDigi
Without CA , Band 3 4x4 256QAM

Same on the 260 plan
50% Supplementary Line Discount + 30% Main Line Discount (I argued with Digi via MCMC because no line at my house) + RM50 rebate + RM10 rebate + 50% Roaming Pass Discount + RM139 Fibre Rebate

Anyone know how to tell this problem to Digi properly? I tried via MCMC , app ticket all doesn't work
The SINR inside tunnel of MRT Putrajaya Line have a very poor results 1db which resulting worse 4G experience
No 5G atm , this happened since the launch of MRT

Pixel 7 Pro 3CA 561Mbps CelcomDigi Merged Area
Non related but would recommend you to root your Pixel 7 Pro so you can see these details (including SIB1 which you can see whether it's a CelcomDigi merged tower or not as if merged there are two PLMN which are 502 19 and 502 16) and unlimited Google Photos backup

Prior to CelcomDigi merge , Digi customer service is the best Customer Service in 4 big telcos from my personal experience. But since the merging the quality dropped alot 🤡

U mean the RM50 one?
Previously it was unlimited + 20GB hotspot, now CDG change to all unlimited.
Previously there was clear FUP stated that this plan have a 300GB FUP , once reached throttled to 10Mbps. (I got throttled before, 10Mbps is still acceptable)
Now their TnC didn't mention specifically but I think still 300GB, some more after finish 300GB got 10Mbps unlimited speed

This is because Maxis is the only one telco (?) deployed 2CA inside the KJL , Celcom only deploy 1 band (iinm is Band 1 SISO)
But for the MRT Kajang and Putrajaya line Celcom and Digi already MOCN , but for PYL the line is quite not stable

Hmm , but at the Oasis part Digi 4G is not quite stable especially upload , not sure why

Digi is still SISO Band 1 only (yes, not even 3 7 8) but according to Digi they shd have upgraded it to 2T2R according to their TSSR report
Wonder will they use pRRU like Maxis for integration




Attached File(s)
 ilide.info_1844a_masjid_jamek_2t2r_l26_2023_02_17_v11_pr_f25f1659391ff377f98c6883f0413588.pdf ( 8.16mb ) Number of downloads: 57

It should be under P&C but u can easily search it from Google

Both plan also can regardless of postpaid or prepaid

eSIM shows MY CelcomDigi
Physical SIM (issue around 2019) shows Digi only

I disabled Voicemail services since I started to use Digi so no issue for me

4G is still okay at least around library with 3CA
5G is horrible , inside the library 4G is way better than 5G alot

I think speedtest IP Database uses Maxmind one , then on Maxmind IP Database all IP of AS4818 (Digi) and AS10030 (Celcom) ISP field changed to CelcomDigi
Fun fact Android Speedtest App still shows the correct carrier name but not iPhone