Stephan Popov
Stephan Popov is a certified mobile security engineer and the founder of UnlockBoot.com, with over 15 years of experience specializing in iOS software recovery and device unlocking. He provides actionable fixes for common iOS bugs and tools that improve user experience. Stephan conducts in-depth research for every topic covered on this blog to ensure comprehensive, reliable troubleshooting information for Apple and Android users. He holds professional certifications in mobile device repair and security protocols.
Connect with Stephan on LinkedIn, X, and Facebook.
How to Clear App Store Cache on iPhone or iPad
Are you wondering how to clear App Store cache? Like most services on the web, iOS App Store has a local cache of details...
How to Fix iPhone Always Searching For Service
iPhones are excellent smartphones, yet very often they might run into silly troubles. Some iPhones had been complained to keep searching for network and...
“App Needs to Be Updated” – Troubleshooting Guide For iPhone
Many Apple users receive a notification saying "App Needs to be Updated" after updating to the iOS 10 or iOS 11 firmware and are...
WiFi Not Working in iOS 11? Here are 11 Ways to Fix
The new Apple iOS 11 public beta was released and just like consumer’s expectations; was filled with numerous new features including Customize Control Center,...
Unlock iPhone 4 / 4S / 5 Using Official IMEI Unlock
If you're one of the many folks desperately searching for a permanent factory unlock solution for your iPhone 4, 4S, 3G, or 3GS because,...
Activate Your Factory Unlocked iPhone 4, 4S, 5, 5C & 5S
Today, we are here with another solution for our readers. Those of you who want to activate your recently unlocked iPhone without updating to...
How to to Free Up Disk Space on Mac
Your Disk is Almost Full? You wanted to save something but can’t decide what to delete instead because your disk is about to be...
Unlock Fido Canada iPhone 7/8/X/6S/6/SE/5/5C/5S/4S/4
Hello Dear Readers, we've been a bit busy since finding out the most reliable unlock provider for all iPhone models. As you may know...
How to Fix iTunes Error 21 When Restoring iPhone or iPad
Are you getting the unknown iTunes error 21 message when you try to restore or update your iPhone? iPhone errors are pretty common –...
How To Fix Unresponsive iPhone 6 Plus / 6 Touch Screen
There’s no doubt that the iPhone 6 and 6 Plus have received a lot of success. According to a report released by Apple, the...
10 Best Ring Holder Cases for iPhone 8 Plus
These days many iPhone users prefer ring cases over traditional ones. The main reason for that is the ring case offers better grip to...
GBA4iOS Not Working? Here’s a Working Way to Install it Without Jailbreak
GBA4iOS not working on your iPhone or iPad running iOS 10 or iOS 11? In this guide, I will tell you how you can...
How to Enable iCloud Music Library in iTunes on Mac or PC
iOS users usually rely on iTunes to manage their music library. Well, that’s great as the app is specifically developed for Apple device and...
8 Best AccuWeather Alternatives for iPhone and iPad
Weather apps like AccuWeather have recently become very popular for their accurate weather reporting as well as an easy-to-use interface. However, there are rumors...
How to Download Twitter Videos On iPhone or iPad
Do you want to download Twitter videos on iPhone without relying on an app? iPhone users increasingly use social networks and Twitter is one...
Factory Unlock iPhone 4, 4S, 5, 5C, 5S, 6, 6S & 7 By IMEI
Dear UnlockBoot readers, you might know that we have been posting about factory unlock services for a while. Well, we have tested one here...
Fix Unable to Verify Update Error on iPhone in iOS 10/iOS 11
Although Apple makes great hardware, they in fact identify themselves as a software company. Apple’s hardware are complemented by their smooth and fluid software...
5 Best Battery Cases for iPhone 8: Shopper’s Guide
Regardless of the 1,821 battery life in the new iPhone 8, you can run out of juice eventually and since carrying a charger with...
How to Backup iPhone to External Hard Drive on Mac
Users of iPhones or iPads with larger storage capabilities often find backing up locally to be difficult. An easy solution is to backup an...
Facebook Messenger Crashing on iPhone and iPad? Here Are 6 Fixes
Many users, when opening the Facebook app on their iPhone experience an immediate shutdown. Or several times the app crashes in the midst of...
