Check out the How do I fix problems with iLok License Manager on a Mac? Page at Sweetwater — the world's leading music technology and instrument retailer! Check out the How do I fix problems with iLok License Manager on a Mac? Page at Sweetwater — the world's leading music technology and instrument retailer! If your iLok still won’t. Dec 30, 2011  This is almost certainly a.dmg file that was not downloaded correctly. I was downloading.dmg files with chrome and could not get the system to recognize them. I switched to firefox and bingo! (My system is a macbook pro 2.3 GHz Intel Core i5 running Lion - but this may be irrelevant). I have a 2009 (flashed to 5,1) dual quad Mac Pro. I have a total of 8 DIMM's, but only six are recognized. If I install all 8, the computer won't make it past a blank white screen. Now here's the thing: I have tested all 8 DIMMs individually in slot 1, and they all work. Downloaded.dmg file on Mac, run and install. This one refuses to run the file. I downloaded TransMac on my other PC and made the USB bootable from that, using the same.dmg file that worked previously. The only other solution that i can thin of is to put this HD into the other Mac and try to install it there.

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• I downloaded Sierra on my old MacBook (running El Capitan). I'm trying to create an install drive with UniBeast, and it doesn't recognize the downloaded Sierra installer at `/Users/me/Downloads/Install macOS Sierra.app`. What could be the issue? I checked the UniBeast app contents, but couldn't find any configuration files to edit.
• About DMG Files. Our goal is to help you understand what a file with a.dmg suffix is and how to open it. The Mac OS X Disk Image file type, file format description, and Mac, Windows, and Linux programs listed on this page have been individually researched and verified by the FileInfo team.

You might experience issues such as these when you try to print from your Mac or print from your iOS device:

• You can't see your printer from your device, or you get a message that no printers were found.
• You get a message that software for your device isn't available.
• You have some other printing issue related to the software on your Mac or iOS device.

For help with an error light or other error condition on the printer itself, check the printer's documentation or contact its manufacturer.

If your printer is AirPrint-enabled

If your printer is AirPrint-enabled for printing from your Mac or iOS device, just make sure that it's connected to the same Wi-Fi network used by the Mac or iOS device.¹

If you still can't print, try any of these solutions:

• Restart your Wi-Fi router. Then restart your printer.
• Move your printer closer to your Wi-Fi router.
• Update your printer and Wi-Fi router with the latest firmware from the manufacturer.²
• Update the software for your Mac or iOS device.

If you're using a Mac and you still can't print, it might help to reset the printing system. Otherwise, contact the printer manufacturer for support.

If your printer isn't AirPrint-enabled

If you're printing from your Mac to a printer that isn't AirPrint-enabled:

1. If your printer is connected to your Mac with a cable, disconnect the cable from your Mac.
2. Turn off your printer.
3. Get software updates for your Mac. Your Mac automatically downloads the latest software for most printers as part of these updates, so it's best not to install software from the printer manufacturer.
4. Reconnect your printer to your Mac, if applicable.
5. Turn on your printer and wait for it to finish starting up.
6. Choose Apple () menu > System Preferences, then click Printers & Scanners.
7. Select your printer in the list of devices.

If your printer doesn't appear in the list of devices in Printers & Scanners preferences, click at the bottom of the list, then choose the command to add a printer or scanner. The window that opens offers more ways to find and add a printer, such as by IP address:

If you still can't print, and your printer is connected via Wi-Fi:

• Restart your Wi-Fi router. Then restart your printer.
• Move your printer closer to your Wi-Fi router.
• Update your printer and Wi-Fi router with the latest firmware from the manufacturer.²

Reset the printing system

If the issue continues, reset the printing system on your Mac. This removes all printers and scanners—including their print jobs and settings—from Printers & Scanners preferences.

1. Choose Apple menu > System Preferences, then click Printers & Scanners.
2. While holding down the Control key on your keyboard, click anywhere in the list of devices.
3. Choose “Reset printing system” from the menu that appears:

Remove printer drivers

If the issue continues on your Mac after resetting the printing system, take these final steps to remove any currently installed printer drivers. These steps don't apply to AirPrint printers.

1. From the menu bar in the Finder, choose Go > Go to Folder. Type /Library/Printers/ and click Go.
2. The Printers folder opens. Choose Edit > Select All, which selects all items in the Printers folder.
3. Choose File > New Folder with Selection, which puts all of the selected items into a new folder named New Folder With Items. To save storage space, you can delete this folder.

If the issue continues, contact the printer manufacturer for support.

1. In corporate environments, DNS records can be configured to allow AirPrint-enabled printers to appear across other networks instead of just the network used by the device you're printing from. You can also use configuration profiles in iOS to set up AirPrint printers.

2. Firmware updates—such as for AirPort base stations—update the software on the printer or router, not the software on your Mac or iOS device. If the latest firmware from the manufacturer is several years old, the manufacturer might have stopped supporting or updating your device. If so, you might need a more up-to-date printer or router.

Summary: External hard drive is not recognized by your Mojave Mac computer? With the assistance of iBoysoft Mac Data Recovery, this page will show you how to fix unrecognizable external hard drive without data loss.

Usually, when you connect your Seagate, WD my passport, Toshiba or other external hard drive to Mac, it will quickly show up on desktop or in Finder. But sometimes your MacBook, MacBook Pro, MacBook Air or iMac doesn't recognize external hard drive on macOS Mojave, which is so frustrating as you can't access all important files in the drive. Don't worry, this page will show you how to fix unrecognizable external hard drives without losing data on macOS Mojave, let's repair this external hard drive step by step.

First of all: Have some basic checks

There are numbers of reasons why your Mac doesn't recognize the external hard drive on macOS Mojave, such as damaged port or cable, Mac system crash, incorrect format, file system corruption, hardware problem, etc. No matter what the reason is, you can first try to troubleshoot the unrecognizable external hard drive issue with some basic checks.

• Check the external hard drive is properly plugged in

You can re-plug this external hard drive and see if it can be recognized by your Mac computer. The reason for this is, sometimes, your Mac can't show up your external hard drive just because you improperly plug it into the port, for example, plug it into the port too fast or too slowly.

• Plug external hard drive into a different port to see whether it is working or not

You can connect your external hard drive to your Mac computer through another USB port since there is a difference between version 2.0 and version 3.0.

• Try a different USB port to make sure it's not at fault

You can check if it is a faulty connection like wobbly port and broken USB cable that makes your external hard drive unrecognizable by the Mac computer. Just read this external hard drive through another port and cable.

• Try another Mac computer to see if the external hard drive shows up in desktop

Another factor that stops your external hard drive showing up could be a malfunctioned Mac computer or incompatible file system, and you can simply connect this external hard drive to another Mac or PC.

Check if the external hard drive shows up in Disk Utility

If your external hard drive is not recognized by the Mac computer still, you can go to Disk Utility on Mojave to check whether the external hard drive shows up. By this way, you can judge that the macOS Mojave not recognizing external hard drive issue results from logical or hardware problems.

How to fix if the external hard drive can be found in Disk Utility

If your external hard drive is listed in Mojave Disk Utility, you can breathe again as the external hard drive doesn't have any tough hardware problem. Then you can check the state of the external hard drive in Disk Utility.

External hard drive is mounted in Disk Utility

If the external hard drive is mounted in Disk Utility as usual, your external hard drive is recognized by macOS Mojave actually. But why the external hard drive not showing up on the Desktop or in Finder of your macOS Mojave? Here is a way to fix the unrecognizable external hard drive error if your external hard drive not showing up macOS Mojave.

Step 1: Go to Finder > Preferences >Sidebar.

Step 2:Select 'External disks' under 'Devices' to show your external hard drive in the Finder sidebar.

Step 3: Shift to General tab.

Step 4: Check 'External disks' under 'Show these items on the desktop' and your connected external hard drive will appear in Finder and on the desktop.

External hard drive is unmounted in Disk Utility

If the external hard drive is unmounted in Disk Utility, the drive might have some file system corruptions. But don't be panic when you hear 'corruption', you still have many ways to fix Mac not recognizing external hard drive on Mojave.

Solution 1: Mount external hard drive manually

1. Open Disk Utility.
2. Right click the external hard drive from the left sidebar and then click the Mount button.

Solution 2: Repair unmountable external hard drive via First Aid

1. Launch Disk Utility.
2. Choose the grayed out external hard drive.
3. Select First Aid in the top center and click Run.

Solution 3: Fix the unrecognizable external hard drive on Mojave by reformatting

If First Aid is unable to fix Mac not recognizing external hard drive issue on Mojave, the file system of the external hard drive might be seriously corrupted. The only way to fix this unrecognizable external hard drive is to reformat it. But before this operation, you should have a backup of important data because reformatting will erase your data on this external hard drive. Forgot to back up? iBoysoft Mac Data Recovery can help you recover all lost data from this unmountable external hard drive on macOS Mojave.

iBoysoft Mac Data Recovery is the best APFS data recovery software that can recover deleted/lost data from encrypted, formatted, inaccessible, corrupted, unmountable, unreadable APFS external hard drive, hard drive, USB flash drive, SD card, memory card, etc. in macOS Catalina 10.15/Mojave 10.14/10.13 High Sierra. It also supports file systems HFS, HFS+, exFAT, FAT32.

Step 1: Recover lost data from unmountable external hard drive with iBoysoft Mac Data Recovery

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1. Download and install iBoysoft Mac Data Recovery on Mac.

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2. Launch iBoysoft Mac Data Recovery.

3. Select the unmountable external hard drive and click 'Next' button to scan all lost data.

4. Preview the searching results, choose files we need, and click 'Recover' to get them back.

Step 2: Reformat the unmountable external hard drive

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1. Launch Disk Utility.

2. Select the unmountable external hard drive on the left part of the window.

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3. Click the Erase on the top of the Disk Utility window.

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4. Complete the related information (name, format, scheme), then click Erase.

Scenario 1:How to fix if the external hard drive is not shown in Disk Utility?

Ifexternal hard drive not showing up in Disk Utility, unfortunately, your external hard drives has hardware problems that none of software can solve it. You'd better send the external hard drive to a local data recovery company as soon as possible.

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