how can i update my software if i cannot use wifi?

regine15 wrote:

i dont have computer too, what should i do to update my software, can i update my software by using my cecullar data?

An iPhone with 5G can usually update via cellular. Here are those models: Use 5G with your iPhone - Apple Support

If you have an older iPhone with 4G/LTE or such, ask your cellular carrier for a MiFi or Jetpack or similar device. This is a small device that provides Wi-Fi, using your cellular data.

Or use the Wi-Fi at a local mall, Apple Store, restaurant, library, or other establishment.

Update through your computer. See if this helps: Update your iPhone, iPad, or iPod touch with iTunes - Apple Support

regine15 Said:

"how can i update my software if i cannot use wifi?: i cannot use my wifi"

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Updating an iPhone:

Use of Cellular:

What's the model of your iPhone? You may be able to perform an update through use of Cellular. See my User Tip: Use an iPhone 12 or later, that is using 5G, in order to update over Cellular - User - Tip