Original topic:

5G Modem Optimization: n78 Band Latching & Throughput Issue

(Topic created on: Thursday)
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Sourabhsahu
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I’ve faced persistent network issues since purchase. On One UI 8.5 Beta, the modem logic remains inefficient. Even with strong n78 (3500MHz) coverage, the device aggressively switches to n28 (700MHz).

Comparative Analysis:

In identical locations and carriers, budget Chinese smartphones stay locked on n78, providing superior speeds. However, the S24 FE prematurely drops to n28. This confirms the issue is with Samsung's conservative handover logic and modem tuning, not the network.

Steps to Reproduce:

  1. ​Use S24 FE in an area with confirmed n78 signal.
  2. ​Compare side-by-side with a budget Chinese OEM device.
  3. ​Observe the S24 FE shifting to n28 while the other device maintains an n78 lock.
  4. ​Run speed tests; S24 FE shows significantly lower throughput due to this switching.
2 Comments
IndiaBetaTeam
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Dear Samsung Member,

Greetings from India Beta Team!

We acknowledge your feedback.
However, we request you to please report this feedback on the Error section, along with the logs. This would help us analyze your issue in a better way.

The path to report error is as below:
Open Samsung Members -> Click on beta banner -> Switch to beta mode-> Beta feedback -> Send feedback -> Error report

Thank you for being our valued customer.

Warm Regards,
India Beta Team

Sourabhsahu
Active Level 3
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