Galaxy A57 Problems: One UI 9 ‘Access Denied’ Bug and Fixes

The update finishes, the Samsung logo fades, and instead of your home screen you get two words: Access Denied. Of all the Galaxy A57 problems reported so far, this One UI 9 bug is the one filling forums, and it started in October 2026 when Samsung widened the Android 17 rollout beyond South Korea.

Plenty of owners have got past it without losing a single photo. Try the steps below in order, because only the very last one erases anything.

Three screens you might be stuck on

After One UI 9 (based on Android 17) installs, an affected A57 never reaches the normal home screen. You see one of these instead:

• An error page that just says “Access Denied”.
• A raw XML document tree: lines of code-like text inside angle brackets.
• The One UI 9 introduction or setup screens, which won’t complete or keep returning.

ProPakistani reported on 14 October 2026 that the complaints began once the stable update spread outside South Korea. The Korean version of the phone, sold as the Galaxy Quantum 7, got the update earlier with no similar reports. Not every A57 is hit, and there’s no reliable way to tell which ones will be. Sammyfans has also reported Galaxy phones getting stuck after the One UI 9 update.

The cause is unconfirmed. People on Reddit and X suspect a broken XML configuration file shipped with the update, which would fit the code-on-screen symptom. As of mid-October Samsung hadn’t given a public explanation or a date for a permanent fix. We’ll update this page when it does.

Getting past the error without wiping the phone

Force restart and wait

Hold Side (Power) + Volume Down for about 10 seconds, until the screen goes black and the Samsung logo comes back. Let it boot all the way and leave it on the error screen for two or three minutes. Sometimes the background setup finishes on the second boot.

Safe Mode, then a normal restart

This is the unofficial fix that has worked for a lot of owners. Safe Mode loads only Samsung’s core system, and that seems to let the phone finish whatever step it was stuck on.

1. Press and hold Power + Volume Down to bring up the power menu, or use the power icon in Quick Settings if you can get to it.
2. Touch and hold Power off until a Safe mode button appears. Tap it.
3. Can’t reach the menu? Force the phone off, switch it on, and hold Volume Down from the moment the Samsung logo shows until it has finished booting.
4. Wait for “Safe mode” to appear in the bottom corner of the home screen.
5. Restart normally from the power menu and see whether the home screen loads.

Finish setup offline

Stuck on the introduction screens? Turn on Airplane mode from the notification shade if you can pull it down. If not, take out the SIM and move away from Wi-Fi networks the phone knows. Then try to complete setup. Some owners say skipping the online steps gets them to the home screen. Reconnect once you’re in.

Wipe the cache partition

Switch the phone off and connect it by USB-C to a computer or charger. Hold Volume Up + Power to get into Recovery. With the volume keys, select Wipe cache partition if your menu has it, confirm with Power, then choose Reboot system now. Personal files aren’t touched.

Factory reset, only when everything else has failed

A reset from Recovery (Wipe data/factory reset) usually clears the bug, but it erases everything that isn’t backed up. You’ll also need the Google account that was on the phone to get through Factory Reset Protection afterwards. Read how to factory reset a phone properly first, and talk to Samsung (next section) before you go this far.

What to have ready when you contact Samsung

A Samsung service centre can sometimes reinstall the firmware without wiping your data. Copy your IMEI from the box or SIM tray before you go, and bring:

• The model number printed on the box (it starts with SM-A) and the country you bought the phone in.
• The date and time the update installed, and which screen you now see: “Access Denied”, XML text or the setup loop.
• A photo of that screen taken on another device.
• A list of what you’ve tried (Safe Mode, offline setup, cache wipe) so the technician doesn’t start from zero.
• Whether you have a recent backup, so they know if a reinstall or reset is acceptable to you.

Inside the warranty period, a software fault caused by an official update should be fixed free of charge.

Hold off on One UI 9.0 if your A57 is fine

If you haven’t updated yet and the phone works, there’s no rush. ProPakistani advised owners to skip One UI 9.0 for now. To pause it:

1. Open Settings › Software update.
2. Switch off Auto download over Wi-Fi.
3. If it has already downloaded, don’t tap Install now, and don’t leave it on charge overnight with an install scheduled under Schedule install.

Look at the update page every week or so. When Samsung pushes a revised build, usually a newer build number and a small download, the risk drops. Our One UI 9 rollout tracker lists which models and regions have it.

Battery draining faster since the update

Even A57s that update cleanly often lose charge faster for a few days. Android re-optimises every app after a major version change, and Samsung has told owners of other Galaxy models it can take up to about two weeks to settle.

1. Go to Settings › Battery › View details and look for an app using far more than normal.
2. Update everything in the Play Store and Galaxy Store.
3. Send apps you rarely open to sleep: Settings › Battery › Background usage limits › Sleeping apps.
4. Restart once a day for the first few days.
5. Still heavy after two weeks? Run Samsung Members diagnostics and contact Samsung.

Some warmth for a day or so after updating is part of the same re-indexing. Take the case off while charging and leave games alone until it calms down.

Apps crashing, Wi-Fi and data dropping on Android 17

An app that crashes or behaves oddly usually just needs its own update. If it still misbehaves, clear its cache: Settings › Apps › [app] › Storage › Clear cache. Banking apps in particular sometimes need a separate update for a new Android version.

For Wi-Fi or mobile data trouble, try Settings › General management › Reset › Reset network settings. You lose saved Wi-Fi networks and Bluetooth pairings, not personal data.

Buying a used A57 right now

A phone frozen on a setup screen looks a lot like a locked one, and some sellers offload bug-hit or locked phones cheaply. Before you pay:

• Make sure it boots to the home screen in front of you.
• Watch the seller remove their Google and Samsung accounts.
• Run a Samsung Info report for the exact model, region and warranty dates.
• Start with a free basic IMEI check to confirm the IMEI is clean.