Telekom (Germany) - only 2.5G

Devices
1

Since I first start the phone I see that one sim card only gets maximum 2.5G when connected.

I tried with different slots, multisim, single sim, I’ve also moved this card back to an old LineageOS phone.

It’s always 2.5 with below 1mbit/s on speed test and 4G on that old Android phone.

What’s even more annoying, the second sim card I have (Orange Poland), while in roaming, still connects to the same Telekom network as the main card, and there I see Telekom 4G…

Anyone has some ideas how to tackle this?

Honestly, I have this phone since yesterday and there’s not much that actually works. Troubles all over. I really try to have low expectations here since I knew what I’m buying, but not even getting LTE is a deal breaker.

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2

I also have Telekom DE, runs without any problems. Settings are to use 5G, but I usually just get 4G cause of my region (but can confirm that 5G works to where available).

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3

I think that you are not alone. A bug is open here : Can only get 2G or 2.5G on Fastweb SIM

Can you try to force in Settings : prefer 4G ?

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4

I can use 4G and 5G with Telekom DE, but the signal strength on the Jolla Phone GEN2 is extremely weak. On my Android device I usually get around 95–100% signal, while SailfishOS on the Jolla Phone GEN2 only shows about 20–30%.

I think this might be the same issue you’re experiencing. When the signal is slightly weaker at your location, SailfishOS seems to perform a handover down to EDGE (2.5G), even though 4G/5G should still be available.

So it looks like a modem/firmware problem specific to SailfishOS or the Jolla Phone GEN2 rather than a Telekom network issue.

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5

I tried “prefer” in all possible options.

6

Weak signal would make sense, unless I see that there are two sim cards, one from Orange (PL), one from Telekom (DE) and they both end up connecting to Telekom. Orange has 4G while Telekom 2.5

7

The signal bar is inaccurate. This is well known bug.

Vodafone Germany has 5G.

8

Thx, maybe I’ll move all my family from Magenta to Vodafone.

Jokes aside, I spent some more time today, including resetting entire phone to factory but no bueno.

Added a mention here too so it gets tracked by the “official” bug report.

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9

i tried with Vodafone card and indeed I get 5G.Today i also replaced SIM card to exclude some weird edge case. Still 2.5G / EDGE with a brand new SIM.

10

Honestly, not sure whether it looks the same for the phone you have (I assume this discussion is related to the J2?) - but the issue looks a bit similar to something I was experiencing and it could be related to the modem config. There’s a longer thread here related to VoLTE on the Sony Xperia 10ii.
(But don’t just try stuff randomly since playing around in root files could make matters worse).

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11

Weirdly it seems to be fixed now. I went to another city and once i was there I noticed Telekom got 4G. Now I’m back home and it stays like this.