Nothing Phone 3a Pro eSim not working

ThomasJonathanGarcia

[UPDATE - Dec. 9, 2025]:

I downloaded Nomad (eSim provider) and did not get a warning that my device is incompatible.

Therefore, to test it out, I used their free welcome gift and purchased an eSim in my local area. Upon installation, I was shown a warning saying “Your Device is Incompatible”. I was disappointed at this, but then Nomad allowed for Manual installation, so I went ahead and did this by:

Turning off my 2nd Nano SIM slot.
Turning on the eSim slot.
Headed back into the Nomad app. The warning was then gone and I proceeded to setup the eSim with the local carrier.
I am currently writing this update using mobile data of the eSim with Nomad.

Now, here’s the weird part, I have reinstalled Saily just to check if it affected anything. Weirdly enough I don’t have the “Your Device is Incompatible” warning on their anymore too.

For my upcoming trip, I will stick to Nomad for now since I have fully tested it to be working and their plans are better.

Also, I will still continue pursuing my ticket with the support team to clarify what on Earth was going on - did I not use my phone correctly? Did I not configure the SIM settings properly? All questions to be answered (hopefully).

Finally, I will also update after my trip on reliability of Nomad as an eSim provider when used on the Nothing Phone 3A Pro.

[Original Post - Dec. 8, 2025]

I have owned a Nothing Phone 3a Pro since March.

I have brought it on a trip to Taiwan and Singapore and have successfully used the eSim feature on both trips. I bought my eSim via Klook.

Recently, I came from a trip to Japan where I bought an eSim from Klook once again. However, this time around, I got a notification saying that my device does not support eSim.

I have an upcoming trip to the USA and I installed Saily and Airalo to try other eSim providers, but both apps are saying that my device is incompatible.

What is going on? I really need help as I specifically bought this phone for it’s eSim feature/functionality for the purpose of travel.

Any advice would be greatly appreciated.

Mr Steel

ThomasJonathanGarcia I recommend getting in touch with the support team, they should be able to help further.

ThomasJonathanGarcia

Mr Steel thanks, and yes I have already sent in a support ticket. Thought I might also make a post on the community to see if anyone else has experienced this.

Lout_Of_Order

How many physical SIMs do you have? Reason I ask is according to GSMArena is supports the following:

· Nano-SIM + Nano-SIM + eSIM (max 2 at a time)

https://www.gsmarena.com/nothing_phone_(3a)_pro-13649.php

So perhaps if you have two physical SIMs the eSIM option becomes unavailable as it has already used the maximum of 2 at a time?

ThomasJonathanGarcia

Lout_Of_Order thanks for your reply. I do have 2 physical nano SIM cards right now. However, the phone allows you to turn off physical SIM card 2 slot to turn on the eSim - so I don’t think that’s the issue.

Lout_Of_Order

ThomasJonathanGarcia Ah OK, I wasn’t 100% sure how the setup works as I have the regular 3a which doesn’t have eSIM support.