Recover Nikon NEF RAW Files After Camera Error or Firmware Update

TL;DR:

You can potentially recover lost RAW files after a camera error or the 2026-08-18 firmware updates by immediately halting card usage, denying format prompts, and scanning the detectable SD card via a computer before retrying the installation.
    ● Filter your recovery scan specifically by camera model: search for .NEF, HEIF, and NEV files while checking both SD slots for the Nikon Z5II (Firmware C:Ver.1.20), but strictly filter for .NRW rather than .NEF when recovering photos for the COOLPIX P1000 (Firmware Version 1.9).
    ● Prevent permanent data overwrite by refusing to format the card, run CHKDSK, or copy new update files like Z5_2_0120.bin onto the affected storage until you have successfully extracted the media to a separate drive.
    ● Validate the integrity of recovered media by opening the files in Nikon NX Studio first, restricting any subsequent file repair tools strictly to duplicates if the original RAW files fail to open.

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Nikon RAW photos often carry the highest value on a memory card. A JPEG may be enough for a quick preview, but a .NEF file from a Nikon Z camera keeps the RAW sensor data, metadata, and editing latitude photographers need for paid shoots, travel work, events, or client delivery. When a Nikon camera shows a card error, freezes during shooting, or runs into trouble during a firmware update, the first priority is not to make the card usable again. The first priority is to protect the files.

This guide is built around a current Nikon workflow risk. Nikon's Download Center listed Z5II Firmware C:Ver.1.20 and COOLPIX P1000 Firmware Version 1.9 on 2026-08-18. Both firmware pages require a computer and card reader or card slot, which means the SD card becomes the update carrier. If that same card still holds photos or videos, a simple update preparation mistake can turn into a Nikon RAW recovery problem.

There is also one important format detail: the Nikon Z5II records NEF RAW photos, while the COOLPIX P1000 uses NRW RAW. Treating every Nikon RAW file as NEF can cause missed files during recovery, especially when filtering by extension.

Part 1. What to Do First When Nikon RAW Files Disappear

If Nikon NEF or NRW files disappeared after a camera error or firmware update, assume the card is fragile until proven otherwise. The safest order is: stop writing to the card, recover files, back them up, and only then format, repair, or retry the update.

• Turn off the camera: do not keep rebooting with the same card if it contains irreplaceable photos or videos.
• Remove the SD card: if the camera has two card slots, remove and label both cards before scanning.
• Cancel format prompts: do not accept a camera, Windows, or macOS prompt that asks to initialize or format the card.
• Do not copy firmware again: a new .bin file or folder can overwrite recoverable RAW data.
• Scan from a computer: use a reliable reader and recover files to a different drive, not back to the original SD card.

Fast Triage Table

Part 2. NEF vs NRW: Know the Nikon RAW File You Need

The main keyword is recover Nikon NEF RAW files, but Nikon RAW recovery should not ignore NRW. Nikon's own Nikon Electronic Format explanation describes NEF as Nikon's RAW format that keeps the image information captured by the camera sensor and the image metadata. For Z-series cameras such as the Z5II, NEF is the expected still-photo RAW file, and Nikon's Z5II specifications list NEF RAW and dual-card recording options.

The COOLPIX P1000 is different. Nikon's P1000 firmware history refers to NRW (RAW) data, and Nikon's NX Studio documentation lists support for both NEF and NRW files. If your article, recovery filters, or file search only mention NEF, P1000 users may miss the correct files.

Part 3. Why Firmware Updates Can Create SD Card Recovery Risk

A Nikon firmware update should not normally delete photos by itself. The practical risk comes from how the update card is prepared.

Nikon's Z5II firmware page says a card reader and computer are required, and its update instructions tell users to copy Z5_2_0120.bin to the root directory of a memory card formatted in the camera. Nikon's COOLPIX P1000 firmware page also requires a card reader or card slot, then instructs users to copy the firmware folder containing firmware.bin to the root directory of a camera-formatted memory card.

That is a normal firmware workflow when the card is clean. It becomes a recovery risk when the card is also the only copy of a shoot. Users can lose access to Nikon RAW files by formatting the wrong card, copying firmware to a card that contains unbacked-up images, removing the card before a write finishes, or retrying the update repeatedly after the camera fails to recognize the file.

If the card already shows errors, treat it as a storage problem first. Recover the photos and videos before you try to make the firmware update work.

Part 4. Common Nikon SD Card Error Scenarios

Nikon RAW file loss usually falls into a few repeatable cases. Matching the symptom to the right next step reduces the chance of overwriting recoverable data.

Part 5. What Not to Do Before Recovering Nikon RAW Files

Most failed recovery cases get worse because the next step writes new data to the card. Avoid these actions until your Nikon files are recovered or backed up.

• Do not format first: Nikon firmware instructions may require a card formatted in camera, but that advice applies to a clean update card. It is not a safe first step for a card containing missing files.
• Do not run CHKDSK, fsck, First Aid, or partition repair first: these tools can change file-system structures before recovery software has a chance to scan the card.
• Do not copy firmware files again: Z5_2_0120.bin, a firmware folder, or other update files can occupy space where lost RAW data still exists.
• Do not shoot test photos: even one small JPEG or video clip can overwrite part of a missing RAW file.
• Do not assume software can fix physical failure: if the card is cracked, overheating, water-damaged, or invisible to every reader, a professional data recovery lab is safer than repeated DIY attempts.

Part 6. How to Recover Nikon NEF RAW Files from an SD Card

Use this workflow when the Nikon SD card is still detected by a computer or card reader. Recoverit cannot repair Nikon firmware, fix a camera body, or recover overwritten data, but it can help recover local files from readable storage before high-risk troubleshooting.

Step 1. Remove and label the Nikon card

Turn off the camera and remove the SD card. If you use a Nikon Z5II with two cards, label them before scanning. Slot 1 and Slot 2 may be set to overflow, backup, RAW/JPEG split, RAW/HEIF split, or copy between cards. A missing NEF file on one card may still exist on the other.

If the card has a physical lock switch, slide it to the locked position before putting it in a reader. Not every reader enforces the switch, but it can reduce accidental writes in some setups.

Step 2. Connect the card with a stable reader

Use a reliable SD card reader or built-in SD slot. Avoid repeatedly connecting the camera by USB if the camera itself is showing errors. If Windows or macOS can see the card but asks to format it, cancel the prompt. Detectable but inaccessible storage is often exactly the kind of case where recovery software should be tried before formatting.

Step 3. Scan the Nikon SD card in Recoverit

Open Recoverit and select the Nikon SD card from the external devices list. Start a scan and let it finish, especially if the card was formatted or the original DCIM structure is missing.

For Nikon Z5II, search for NEF, JPEG, HEIF, NEV, MOV, and MP4 results. For COOLPIX P1000, search for NRW, JPEG, and MP4 results. If the original folder tree is broken, use file-type filters instead of relying only on the old folder names.

For a broader walkthrough, use the Recoverit memory card recovery page or the camera memory card recovery guide.

Step 4. Filter, preview, and recover to another drive

Preview files where possible. RAW previews may depend on file condition and codec support, so do not judge every RAW file only by the thumbnail. Select the files you need and recover them to a computer drive, external SSD, or another healthy storage device.

Do not save recovered files back to the same SD card. Saving to the original card can overwrite additional files that have not yet been recovered. If the loss involved a formatted SD card, the SD card recovery guide is a useful follow-up for card-level recovery logic.

Step 5. Check recovered files with Nikon software

After recovery, test copies of the recovered files. Nikon's NX Studio supports NEF/NRW RAW files, JPEG, TIFF, Nikon-created videos, and related Nikon camera files. It is a sensible first tool for checking whether recovered Nikon RAW files open correctly.

If a recovered NEF file exists but will not open, keep the recovered file untouched and work on duplicates. For a separate repair workflow after recovery, see Recoverit's corrupted NEF file repair guide.

Part 7. How to Retry the Nikon Firmware Update Safely

Only retry the firmware update after your photos and videos are recovered and backed up. Then rebuild the update card from scratch.

• Use Nikon's official source: start from the Nikon Download Center, not a copied file from a forum or an old folder.
• Use a clean card: choose an SD card that does not contain the only copy of a shoot.
• Format only after backup: if Nikon instructs you to use a card formatted in the camera, do it only on a card whose data is already safe.
• Follow the exact file placement: for Z5II Firmware C:Ver.1.20, copy Z5_2_0120.bin to the root directory. For COOLPIX P1000 Firmware Version 1.9, copy the firmware folder containing firmware.bin to the root directory.
• Keep the update stable: use a charged battery, do not remove the card during the update, and confirm the firmware version afterward in the camera menu.

Part 8. Recoverit vs Nikon Support vs a Data Recovery Lab

Different problems need different help. The key is to choose based on the state of the storage device, not just the camera error message.

Part 9. Prevention Checklist for Nikon Firmware Updates

Use this checklist before the next Nikon firmware update, especially if you shoot RAW for paid or time-sensitive projects.

• Back up the card first: copy NEF, NRW, JPEG, HEIF, MOV, MP4, and project files to at least one computer or external drive.
• Use a separate update card: avoid using a card that still contains the only copy of a shoot.
• Check both Z5II slots: confirm whether the camera was set to backup, overflow, RAW/JPEG split, RAW/HEIF split, or card-to-card copy.
• Use the correct file structure: Z5II uses a .bin file at the card root; P1000 uses a firmware folder at the card root.
• Wait for safe removal: after copying firmware files from a computer, eject the card properly before removing it.
• Verify the version after updating: use the camera firmware menu to confirm the update completed.
• Do not mix update files and production media: clean separation reduces confusion and overwrite risk.

More related articles you can use:

• Recoverit camera recovery software
• Recoverit memory card recovery
• Camera memory card recovery guide
• SD card recovery guide
• Corrupted NEF file repair guide

Part 10. Final Verdict

Nikon's 2026-08-18 firmware updates for the Z5II and COOLPIX P1000 are legitimate official updates, but they also highlight a common recovery moment: the SD card is used as the firmware carrier, and many photographers prepare that card before checking whether every RAW photo and video has been backed up.

For Z5II users, the recovery target is usually NEF RAW, JPEG, HEIF, NEV, MOV, or MP4. For COOLPIX P1000 users, the RAW target is NRW, not NEF. If the card is still detected, recover and back up files first. Then use a clean card and the official Nikon instructions to retry the firmware update. Formatting, disk repair, and repeated firmware-copy attempts should come after data protection, not before it.