Have deleted many apps on phone but still bring storage full

Hi there adebayo209,

Welcome to Apple Support Communities. We have several steps to provide for help with freeing up storage on your iPhone. Since you've already deleted some apps, let's make sure your storage available has updated. First, restart your iPhone. Then go to Settings > General > iPhone Storage to confirm what shows available and if there are any tips to help further free up space.

Next, use the additional tips in this helpful article:

How to check the storage on your iPhone, iPad, and iPod touch

If you are seeing available storage, but still an alert that you need to free up space, you may need to make sure it isn't relating to iCloud storage.

Feel free to reply back with any questions.

All the best.

See if anything here helps. 

Disk space - How to check the storage on your iPhone, iPad, and iPod touch.    *

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ASC YouTube for how to free up space on your iPhone, iPad, or iPod touch