Hey there, I’ve helped several users tackle similar Samsung device data recovery issues, so let’s break down the most practical solutions for your situation:

1. Unlock via OTG Mouse (Most Straightforward Fix) #

Since your laptop can detect the device, its USB functionality is still intact. The Samsung J1 supports OTG, so you can bypass the unresponsive touchscreen with an external mouse:

• Grab an OTG adapter that fits your J1’s micro-USB charging port.
• Connect a wired mouse (or a wireless mouse’s USB receiver) to the adapter, then plug the adapter into your phone.
• Even though the screen is black, the mouse cursor will be active on the display. Use your memory of the pattern lock to navigate and unlock the device.
• Once unlocked, your laptop will be able to access the device’s storage directly, or you can use Samsung’s Smart Switch tool to back up all your data to the PC.

2. Remote Unlock via Samsung Find My Mobile (If You Linked a Samsung Account) #

If you previously signed into your Samsung account on the J1 and enabled the "Find My Mobile" feature, this is a reliable option:

• On your laptop, open Samsung’s Find My Mobile platform (search for it directly in your browser).
• Log in with the same Samsung account linked to your J1.
• Locate your device in the list, then select the Remote Unlock option. Follow the prompts to remove the pattern lock.
• Note: Your J1 needs to be connected to Wi-Fi or mobile data for this to work. Once unlocked, connect it to your laptop to retrieve data.

3. Professional Data Recovery Tools (For Locked/Unresponsive Scenarios) #

If the above methods don’t work, there are PC-based tools designed to recover data from Android devices even without USB debugging (since your laptop already detects the J1):

• Look for tools specialized in Samsung data recovery—many can scan the device’s internal storage directly when connected via USB.
• Install the tool on your laptop, connect your J1, and follow the on-screen instructions to scan for recoverable data (photos, contacts, messages, etc.).
• A heads-up: Some of these tools require a paid license to recover full data sets, so check trial options first to confirm if your data is detectable.

Critical Reminders #

• Don’t restart your device or install new apps—this could overwrite the data you’re trying to recover.
• If all software methods fail, consider a professional data recovery service (they can physically access the storage chip, but this is more costly).

内容的提问来源于stack exchange，提问作者user42363