These are some common tools used to work on this device. You might not need every tool for every procedure.
For any issues you may be facing with the XA Ultra, here is the phones troubleshooting page
Background and Identification ¶
Released in July of 2016, the Sony Xperia XA Ultra is an android smartphone. The Xperia XA features a 6 inch 1080p screen, with curved edges making it comfortable to hold, and only weighs 7.1 oz. With a 21.5 MP main camera, and 16 MP front facing camera, the Xperia XA Ultra comes equipped with a pair of very impressive cameras. From the manufacturer the phone comes equipped with an excessive amount of "bloatware", and suffers from a relatively low screen resolution; additionally, while the memory can be expanded to 200 MB, the phone does not come with sufficient default storage.