How to Factory Reset 21.5' IPS Android Tablet PC (ZN-DP2101C) by SSA

How to Factory Reset 21.5' IPS Android Tablet PC (ZN-DP2101C) by SSA

author: admin
2025-12-19

If you're reading this, chances are you own or work with the 21.5-inch IPS Android Tablet PC (model ZN-DP2101C) from SSA—one of the most versatile devices in their digital photo frame lineup. Maybe your screen has been freezing lately, or you've forgotten your lock screen password. Perhaps you're prepping the device for a new user, or you just want to wipe it clean to enjoy that "fresh out of the box" feel again. Whatever the reason, factory resetting can seem intimidating, especially if you're not tech-savvy. But don't worry—we're going to walk through this step by step, like we're chatting over a cup of coffee. By the end, you'll feel confident handling this process, and your ZN-DP2101C will be running smoothly again.

First, let's take a quick second to appreciate why this device is worth the effort. SSA, a trusted digital signage supplier with over 17 years in the industry, designed the ZN-DP2101C to be more than just a wifi digital photo frame —it's a 21.5-inch smart calendar with a crisp 1920x1080 IPS display, 32GB storage, and seamless WiFi connectivity. It's the kind of device that sits in your home office, kitchen, or even a small business, keeping everyone organized with dates, displaying family photos, or showing off promotional content. But even the best tech needs a little reset now and then. Let's dive in.

What is a Factory Reset, and When Should You Do It?

Think of a factory reset like hitting a "reset button" on your device's software. It wipes all your personal data—photos, apps, settings, passwords—and restores the tablet to the state it was in when SSA first shipped it. It's a powerful tool, but it's not something to do lightly. Here are the most common reasons people reset their ZN-DP2101C:

  • The tablet is slow or unresponsive (apps crashing, lag when swiping, etc.).
  • You've forgotten your lock screen password or PIN.
  • You're selling or giving the device to someone else and want to erase your data.
  • Software glitches that won't go away (like a frozen app or constant pop-ups).
  • You want to start fresh with a clean system.
Important Note: A factory reset will delete all personal data on the device. That includes photos stored locally, downloaded apps, custom settings, and even your WiFi passwords. If you haven't backed up your data yet, stop here and do that first . We'll cover backup tips in the next section!
Step 0: Prepare for the Reset—Backup Your Data

Before we jump into the reset process, let's make sure you don't lose anything important. The ZN-DP2101C has 32GB of storage, so you might have a lot of photos, calendar entries, or notes saved. Here's how to back them up:

Backing Up Photos & Files

If you use the tablet as a wifi digital photo frame , your photos might be stored in two places: locally on the device or synced via cloud services like Frameo, Google Photos, or Dropbox. Here's how to check:

1. Check Cloud Sync

Open the photo gallery app on your ZN-DP2101C. Look for an icon like a cloud with an arrow (this varies by app). If you see it, your photos are likely syncing to the cloud already. To confirm, log into your Frameo or Google Photos account on another device—if your photos are there, you're good!

2. Transfer Files to a Computer

If your photos are stored locally (not in the cloud), connect the tablet to your computer using a USB-C cable. On the tablet, swipe down from the top of the screen and tap "USB for file transfer." On your computer, open the tablet's storage folder (it might show up as "ZN-DP2101C" or "Android Device") and copy your photos/videos to a folder on your computer.

3. Backup Calendar Entries

The ZN-DP2101C's calendar app might sync with Google Calendar or another service. Open the Calendar app, go to "Settings," and check "Accounts." If you see your Google or Microsoft account listed, your calendar entries are already backed up online. If not, take screenshots of important dates (press the power button and volume down button at the same time) and save those screenshots to your computer.

Other Pre-Reset Checks
Check Item Why It Matters How to Do It
Battery Level A reset can take 10–15 minutes. If the battery dies mid-reset, you could damage the software. Plug the tablet into the charger. Wait until it's at least 50% charged (the battery icon in the top-right corner will show a lightning bolt).
Remove External Storage If you have an SD card inserted, the reset might accidentally erase it (though rare). Turn off the tablet, locate the SD card slot (on the side or back), and gently push the card to eject it.
Disconnect from VPNs VPNs can interfere with the reset process, especially if they're blocking system services. Go to "Settings" > "Network & Internet" > "VPN" and toggle off any active VPN connections.
Method 1: Factory Reset via Settings (When the Tablet Turns On)

If your ZN-DP2101C still turns on and you can navigate the screen, this is the easiest method. It's like using the "reset" option in your phone's settings—straightforward and user-friendly.

Step-by-Step: Resetting from the Settings Menu
1. Open the Settings App

On your tablet's home screen, look for the "Settings" icon—it looks like a gear. Tap it to open. If you can't find it, swipe up from the bottom of the screen to open the app drawer, then scroll until you see "Settings."

Pro Tip: If your home screen is cluttered, use two fingers to pinch the screen (like zooming out on a photo) to access the app drawer quickly.

2. Navigate to "System" or "About Tablet"

Scroll down the Settings menu until you see an option like "System," "System & Updates," or "About Tablet." The exact name might vary slightly depending on your Android version, but it's usually near the bottom. Tap it.

3. Find "Reset" Options

Inside "System" or "About Tablet," look for a section called "Reset," "Backup & Reset," or "Factory Data Reset." Tap this option. You might see a warning here: "This will erase all data from your device's internal storage." That's normal—this is where the reset happens.

4. select "Factory Data Reset"

On the next screen, tap "Factory Data Reset" (it might also say "Erase All Data"). The tablet will show a list of what will be deleted: apps, accounts, photos, etc. Read through it to confirm you've backed up everything, then tap "Reset Tablet" or "Erase Everything" (the button text might vary).

5. Enter Your Password (If Prompted)

If you have a lock screen password, PIN, or pattern, the tablet will ask you to enter it now. This is a security step to prevent someone else from resetting your device without permission. Enter your password and tap "Continue."

6. Wait for the Reset to Complete

The tablet will now restart and begin the reset process. You'll see a progress bar or an Android robot icon with a spinning circle. Do not turn off the tablet or unplug it during this time —this could corrupt the software. The process usually takes 5–10 minutes, but it might take longer if you had a lot of data.

7. Set Up the Tablet Again

Once the reset is done, the tablet will restart and take you to the initial setup screen—just like when you first unboxed it. You'll need to connect to WiFi, sign in with your Google/Frameo account, and set up your preferences. If you backed up your data, now's the time to restore it from the cloud or your computer.

Method 2: Factory Reset via Recovery Mode (When the Tablet Won't Turn On)

What if your ZN-DP2101C is stuck on the SSA logo, frozen, or won't turn on at all? That's where Recovery Mode comes in. Recovery Mode is a built-in tool for troubleshooting, and it works even when the main system isn't booting. It's a bit more technical, but we'll break it down simply.

Step-by-Step: Resetting in Recovery Mode
1. Turn Off the Tablet (If It's On)

If the tablet is frozen, press and hold the power button for 10–15 seconds until the screen goes black. If it's already off, skip to the next step.

2. Boot into Recovery Mode

This is the trickiest part: you'll need to press a combination of buttons to access Recovery Mode. For most Android tablets (including the ZN-DP2101C), the steps are:

  • Press and hold the Power button and the Volume Up button at the same time.
  • Keep holding both buttons until you see the SSA logo or an Android robot with a red exclamation mark.
  • Once the logo appears, release the Power button but keep holding the Volume Up button until the Recovery Mode menu shows up.

Note: If this combination doesn't work, try Power + Volume Down instead. Some devices use different button combinations, but these two are the most common.

3. Navigate the Recovery Mode Menu

Recovery Mode uses a text-based menu, and you can't use the touchscreen here—you'll need the Volume Up/Down buttons to navigate and the Power button to select options. The menu might look like this:

  • Reboot system now
  • Reboot to bootloader
  • Apply update from ADB
  • Wipe data/factory reset
  • Wipe cache partition

Use the Volume Down button to scroll down to "Wipe data/factory reset," then press the Power button to select it.

4. Confirm the Reset

On the next screen, you'll see a warning: "Data will be wiped!" Use the Volume Down button to scroll to "Yes — delete all user data," then press the Power button to confirm. The tablet will now start erasing data—this looks like a progress bar or a list of "Deleting…" messages.

5. Reboot the Tablet

Once the data wipe is complete, you'll be taken back to the main Recovery Mode menu. The first option will be "Reboot system now." Press the Power button to select it. The tablet will restart, and this time it should boot normally—no more freezing or errors!

After the Reset: Setting Up Your ZN-DP2101C Like New

Now that your tablet is reset, it's time to set it up again. Let's walk through the key steps to get it back to being your go-to digital photo frame or smart calendar:

1. Connect to WiFi

The first screen after reset will ask for your WiFi network. select your network from the list, enter the password, and tap "Connect." Since this is a wifi digital photo frame , a stable connection is key for syncing photos and calendar updates.

2. Sign In to Your Accounts

Next, you'll be prompted to sign in with a Google account (for app downloads, calendar sync) and/or a Frameo account (for photo sharing). If you used Frameo before, sign in with the same email—your old photo albums should reappear once synced.

3. Restore Backed-Up Data

During setup, Google will ask if you want to restore data from a previous backup. select the backup you created before the reset, and your apps, settings, and calendar entries will start downloading automatically. For photos, open the Frameo or Google Photos app—they should sync once you're connected to WiFi.

4. Reinstall Key Apps

If you had apps like a weather widget or a to-do list, open the Google Play Store, search for them, and reinstall. The ZN-DP2101C runs Android, so most apps designed for Android tablets will work here.

5. Customize Your Display

Set your preferred photo slideshow speed, calendar view (monthly/weekly), and screen brightness. Go to "Settings" > "Display" to adjust these. Remember, this tablet has a beautiful IPS display—make sure your photos are set to "Fit to Screen" to avoid cropping!

Common Questions (FAQ)
Q: Will a factory reset fix my tablet if it's running slow?
A: In most cases, yes! Slowdowns often happen because of too many apps running in the background, cached data buildup, or outdated software. A reset wipes all that clutter, so your tablet should feel faster. If it's still slow after resetting, check for software updates in "Settings" > "System" > "Software update"—SSA occasionally releases updates to improve performance.
Q: I forgot to back up my photos—can I get them back after a reset?
A: Unfortunately, once you reset, local photos (not in the cloud) are gone for good. That's why we backing up first! If you used Frameo, check the Frameo app on another device—your shared photos might still be there. For Google Photos, log into photos.google.com on a computer—if you had sync enabled, they'll be in your account.
Q: My tablet is stuck in a loop after resetting (keeps restarting). What do I do?
A: This is rare, but it can happen if the reset was interrupted. Try the Recovery Mode method again: turn off the tablet, then hold Power + Volume Up to enter Recovery Mode. select "Wipe cache partition" (this clears temporary files) and then "Reboot system now." If that doesn't work, contact SSA's support team—they can help with advanced troubleshooting.
Q: Can I reset just the calendar without erasing everything else?
A: Yes! If you only want to clear calendar entries, open the Calendar app, go to "Settings" > "Accounts," select your calendar account, and tap "Remove Account." Then add the account back—this will sync fresh calendar data without affecting your photos or apps.
Final Thoughts: You've Got This!

Factory resetting your ZN-DP2101C might seem scary at first, but it's really just a tool to help your device run better. Whether you're a home user who loves displaying family photos or a small business owner using it as part of your digital signage setup, keeping your tech in top shape means you get the most out of it.

Remember, SSA isn't just a digital signage supplier —they're a team with 17 years of experience making devices like this. If you run into issues beyond resetting, their support team is available 24/7 (we mentioned that earlier, right?). But chances are, after following these steps, your tablet will be back to its best self—ready to show off photos, keep you on schedule, and make your space a little smarter.

One last tip: To avoid needing resets often, try to keep only essential apps installed, clear the cache every few months (Settings > Apps > [App Name] > Clear Cache), and update the software regularly. Your ZN-DP2101C will thank you!

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