MPC crashing my computer!!! (please help)

I want to try reinstalling the software as well. How do I uninstall? I've been trying to find out how on the internet, and I can't seem to find a solution.

update:

Things I've tried:

- repair disk permissions
- cleared MIDi .plst files
- removed device from MIDI studio
- uninstalled driver + restart
- reinstalled driver + restart
- uninstalled MPC software + restart
- reinstalled MPC software

Plugged the MPC back in and instant kernel panic



Also tried contacting Akai directly about it, but I haven't heard back from them yet (and yes I realize they have a 72 hour wait).

I made a post about it here as well:

http://community.akaipro.com/akai_profe ... uter?rfm=1

If your other software has updated to El Capitan, I would go there. Theres a known problem with USB devices disconnecting. It don't think it got fixed in Yosemite.

I don't think it's Yosemite doing it. I've been using Yosemite since it came out, and it's just now started doing this.

bearhead wrote:I don't think it's Yosemite doing it. I've been using Yosemite since it came out, and it's just now started doing this.

Good luck, if I come across something ill post it.

Have you definitely updated to the latest Renaissance hardware drivers (v3.2.0)? Check the akaipro.com website in the docs & downloads section.

Can you start the Akai software without the hardware?

Ps, check the RAM too, upgrade if possible.

I tried it on a different computer yesterday. Had a hard time installing the drivers (this was on a Windows 7 laptop btw). It wasn't reading the MPC, which leads me even closer to a problem with the USB port. The firmware took a little while too. After I finally got all that out of the way, I was led to the preferences menu. It wouldn't allow me to use the MPC as an audio device. Gave me an error message.

Akai also got back to me, and they told me my MPC was out of the warranty date, and then prompted me to some servicing places. I'm bummed, but there's really nothing else to do other than send it out and shell out money.

bearhead wrote:I tried it on a different computer yesterday. Had a hard time installing the drivers (this was on a Windows 7 laptop btw). It wasn't reading the MPC, which leads me even closer to a problem with the USB port. The firmware took a little while too. After I finally got all that out of the way, I was led to the preferences menu. It wouldn't allow me to use the MPC as an audio device. Gave me an error message.

Akai also got back to me, and they told me my MPC was out of the warranty date, and then prompted me to some servicing places. I'm bummed, but there's really nothing else to do other than send it out and shell out money.

I've installed the MPC software lately on Windows 7 and had issues too. The way it got fixed is by uninstalling The new MPC software and then installing the oldest version possible(you'll find them on the AKai site). Then you can hook up the MPC, register. When that works you can upgrade to the new versions. Like I said before, PLUG YOUR MPC IN A USB 2.0 PORT (not a 3.0), most new laptops have a USB 3.0 port but for some reason the one that works best is a SB 2.0 port. Good Luck, I'm sure there's nothing wrong with your MPC.

bearhead wrote:Akai also got back to me, and they told me my MPC was out of the warranty date, and then prompted me to some servicing places. I'm bummed, but there's really nothing else to do other than send it out and shell out money.

In the EU consumers have legal rights to expect a product to last many years (up to 6 years, depends on what it is), regardless of any additional warranties offered by the manufacturer - is there not something vaguely similar in the US? Are you really on your own after 12 months has passed?

MPC-Tutor wrote:

bearhead wrote:Akai also got back to me, and they told me my MPC was out of the warranty date, and then prompted me to some servicing places. I'm bummed, but there's really nothing else to do other than send it out and shell out money.

In the EU consumers have legal rights to expect a product to last many years (up to 6 years, depends on what it is), regardless of any additional warranties offered by the manufacturer - is there not something vaguely similar in the US? Are you really on your own after 12 months has passed?

Hey Tutor,

You guys in the UK and EU have better consumer protection practices than here in North America. Once the warranty is up here, you're essentially shafted. Companies put clauses in place in their TOS to deny the right to go after them if the product is defective. Most of our warranties are "Limited, 1 year on parts and labour, or for any manufacturing defects". Software seems to be a grey area.

Bringing back this old thread.

Shortly after this started happening, I put my MPC away in storage for a few months. I didn't have the money to get it repaired, and even if I did, I still wasn't sure where to send it off to. Anyway, back in November, I got it out of storage to test it and see if it would work again. Lo and behold, it worked like the issue never existed. It disappeared. So I started using it again with minor audio interface related issues. Possibly related.

So here I am now, and my MPC is doing this AGAIN.

Does anyone have any idea of what's going on here? I suspected last time that it was a USB issue, and I'm 99% sure that's the problem. But if it was a hardware issue, why would the problem disappear after a few months of sitting in storage?

I'm sick of the obstacles, I just want to make music.


Here's the crash report:
________________________________________________________________________
Anonymous UUID: 5B202740-5605-D6FE-FB18-9ECFED26B19A

Sun Jul 9 03:10:18 2017

*** Panic Report ***
panic(cpu 0 caller 0xffffff8010214f72): Kernel trap at 0xffffff7f928a7da2, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x000000000000066c, CR3: 0x00000000a2aa7000, CR4: 0x0000000000002660
RAX: 0xffffff8074cd0008, RBX: 0x0000000000000660, RCX: 0x0000000000000001, RDX: 0x000000000000207f
RSP: 0xffffff80a2eb38e0, RBP: 0xffffff80a2eb38e0, RSI: 0x0000000000000000, RDI: 0x0000000000000660
R8: 0xffffff7f928ec27e, R9: 0x0000000000000010, R10: 0xffffff8010752f90, R11: 0x0000000000000000
R12: 0x0000000000000000, R13: 0xffffff7f928f1814, R14: 0x0000000000000000, R15: 0xffffff8074cd0008
RFL: 0x0000000000010246, RIP: 0xffffff7f928a7da2, CS: 0x0000000000000008, SS: 0x0000000000000010
Fault CR2: 0x000000000000066c, Error code: 0x0000000000000000, Fault CPU: 0x0

Backtrace (CPU 0), Frame : Return Address
0xffffff80a2eb3590 : 0xffffff8010128e01
0xffffff80a2eb3610 : 0xffffff8010214f72
0xffffff80a2eb37d0 : 0xffffff8010231e33
0xffffff80a2eb37f0 : 0xffffff7f928a7da2
0xffffff80a2eb38e0 : 0xffffff7f928c7757
0xffffff80a2eb3910 : 0xffffff7f928c38cd
0xffffff80a2eb3990 : 0xffffff7f928c42f5
0xffffff80a2eb39c0 : 0xffffff7f928a0ef7
0xffffff80a2eb3b50 : 0xffffff80106ff8f4
0xffffff80a2eb3bb0 : 0xffffff80106fd1e3
0xffffff80a2eb3cf0 : 0xffffff80101df487
0xffffff80a2eb3e00 : 0xffffff801012d070
0xffffff80a2eb3e30 : 0xffffff80101119f3
0xffffff80a2eb3e90 : 0xffffff801012237d
0xffffff80a2eb3f10 : 0xffffff801020049a
0xffffff80a2eb3fb0 : 0xffffff8010232656
Kernel Extensions in backtrace:
com.akai.mpc.usb(3.2)[13ACCF92-E4CD-3355-97E8-0348E624E8FD]@0xffffff7f928a0000->0xffffff7f928f8fff
dependency: com.apple.iokit.IOUSBFamily(720.4.4)[4ED60649-760E-3E91-9C58-322700847C7E]@0xffffff7f90b81000

BSD process name corresponding to current thread: coreaudiod

Mac OS version:
14F2411

Kernel version:
Darwin Kernel Version 14.5.0: Tue Apr 11 16:12:42 PDT 2017; root:xnu-2782.50.9.2.3~1/RELEASE_X86_64
Kernel UUID: DE2B5667-8CAE-3FBE-BC1F-797A410EDAF3
Kernel slide: 0x000000000fe00000
Kernel text base: 0xffffff8010000000
__HIB text base: 0xffffff800ff00000
System model name: MacBookPro7,1 (Mac-F222BEC8)

System uptime in nanoseconds: 321657244108
last loaded kext at 321486683468: com.apple.driver.AppleUSBCDC 4.3.3b1 (addr 0xffffff7f928f9000, size 20480)
last unloaded kext at 284728304421: com.apple.driver.AppleMCP89RootPortPM 1.11 (addr 0xffffff7f9234a000, size 24576)
loaded kexts:
com.akai.mpc.usb 3.2.0
com.paceap.kext.pacesupport.snowleopard 5.9.1
com.Cycling74.driver.Soundflower 1.5.1
com.apple.driver.AppleUSBCDC 4.3.3b1
com.apple.driver.AppleHWSensor 1.9.5d0
com.apple.driver.AGPM 110.19.6
com.apple.filesystems.autofs 3.0
com.apple.driver.AppleOSXWatchdog 1
com.apple.iokit.IOBluetoothSerialManager 4.3.6f4
com.apple.driver.AppleMikeyHIDDriver 124
com.apple.driver.AppleMikeyDriver 272.18.3
com.apple.driver.AppleHDA 272.18.3
com.apple.GeForceTesla 10.0.0
com.apple.driver.AudioAUUC 1.70
com.apple.driver.ACPI_SMC_PlatformPlugin 1.0.0
com.apple.driver.AppleLPC 1.7.3
com.apple.iokit.BroadcomBluetoothHostControllerUSBTransport 4.3.6f4
com.apple.driver.AppleUpstreamUserClient 3.6.1
com.apple.driver.AppleSMCLMU 2.0.7d0
com.apple.iokit.IOUserEthernet 1.0.1
com.apple.Dont_Steal_Mac_OS_X 7.0.0
com.apple.driver.AppleHWAccess 1
com.apple.driver.AppleHV 1
com.apple.driver.AppleIntelSlowAdaptiveClocking 4.0.0
com.apple.driver.AppleBacklight 170.7.4
com.apple.driver.AppleMCCSControl 1.2.12
com.apple.driver.SMCMotionSensor 3.0.4d1
com.apple.driver.AppleUSBTCButtons 240.2
com.apple.driver.AppleIRController 327.5
com.apple.driver.AppleUSBTCKeyboard 240.2
com.apple.driver.AppleUSBCardReader 3.5.5
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless 1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0
com.apple.BootCache 36
com.apple.iokit.SCSITaskUserClient 3.7.5
com.apple.driver.XsanFilter 404
com.apple.iokit.IOAHCIBlockStorage 2.7.1
com.apple.iokit.AppleBCM5701Ethernet 10.1.3
com.apple.driver.AirPort.Brcm4331 800.20.24
com.apple.driver.AppleUSBHub 705.4.2
com.apple.driver.AppleFWOHCI 5.5.2
com.apple.driver.AppleAHCIPort 3.1.2
com.apple.driver.AppleUSBEHCI 705.4.14
com.apple.driver.AppleUSBOHCI 656.4.1
com.apple.driver.AppleRTC 2.0
com.apple.driver.AppleHPET 1.8
com.apple.driver.AppleSmartBatteryManager 161.0.0
com.apple.driver.AppleACPIButtons 3.1
com.apple.driver.AppleSMBIOS 2.1
com.apple.driver.AppleACPIEC 3.1
com.apple.driver.AppleAPIC 1.7
com.apple.driver.AppleIntelCPUPowerManagementClient 218.0.0
com.apple.nke.applicationfirewall 161
com.apple.security.quarantine 3
com.apple.security.TMSafetyNet 8
com.apple.driver.AppleIntelCPUPowerManagement 218.0.0
com.apple.AppleGraphicsDeviceControl 3.10.25b1
com.apple.kext.triggers 1.0
com.apple.iokit.IOSerialFamily 11
com.apple.driver.DspFuncLib 272.18.3
com.apple.kext.OSvKernDSPLib 1.15
com.apple.nvidia.classic.NVDANV50HalTesla 10.0.0
com.apple.driver.AppleHDAController 272.18.3
com.apple.iokit.IOHDAFamily 272.18.3
com.apple.driver.IOPlatformPluginLegacy 1.0.0
com.apple.driver.AppleSMBusPCI 1.0.12d1
com.apple.driver.IOPlatformPluginFamily 5.9.1d7
com.apple.iokit.IOBluetoothHostControllerUSBTransport 4.3.6f4
com.apple.iokit.IOUSBUserClient 705.4.0
com.apple.iokit.IOFireWireIP 2.2.6
com.apple.nvidia.classic.NVDAResmanTesla 10.0.0
com.apple.iokit.IOAudioFamily 203.3
com.apple.vecLib.kext 1.2.0
com.apple.iokit.IOSurface 97.5
com.apple.iokit.IOBluetoothFamily 4.3.6f4
com.apple.iokit.IOSlowAdaptiveClockingFamily 1.0.0
com.apple.driver.AppleBacklightExpert 1.1.0
com.apple.driver.AppleSMBusController 1.0.13d1
com.apple.iokit.IONDRVSupport 2.4.1
com.apple.iokit.IOGraphicsFamily 2.4.1
com.apple.driver.AppleSMC 3.1.9
com.apple.driver.AppleUSBMultitouch 245.2
com.apple.iokit.IOUSBHIDDriver 705.4.0
com.apple.iokit.IOSCSIBlockCommandsDevice 3.7.5
com.apple.iokit.IOUSBMassStorageClass 3.7.2
com.apple.driver.AppleUSBMergeNub 705.4.0
com.apple.driver.AppleUSBComposite 705.4.9
com.apple.iokit.IOSCSIMultimediaCommandsDevice 3.7.5
com.apple.iokit.IOBDStorageFamily 1.7
com.apple.iokit.IODVDStorageFamily 1.7.1
com.apple.iokit.IOCDStorageFamily 1.7.1
com.apple.iokit.IOAHCISerialATAPI 2.6.1
com.apple.iokit.IOSCSIArchitectureModelFamily 3.7.5
com.apple.iokit.IOEthernetAVBController 1.0.3b3
com.apple.driver.mDNSOffloadUserClient 1.0.1b8
com.apple.iokit.IO80211Family 730.60
com.apple.iokit.IONetworkingFamily 3.2
com.apple.iokit.IOFireWireFamily 4.5.8
com.apple.iokit.IOAHCIFamily 2.7.5
com.apple.driver.AppleEFINVRAM 2.0
com.apple.driver.AppleEFIRuntime 2.0
com.apple.iokit.IOUSBFamily 720.4.4
com.apple.driver.NVSMU 2.2.9
com.apple.iokit.IOHIDFamily 2.0.0
com.apple.iokit.IOSMBusFamily 1.1
com.apple.security.sandbox 300.0
com.apple.kext.AppleMatch 1.0.0d1
com.apple.driver.AppleKeyStore 2
com.apple.driver.AppleMobileFileIntegrity 1.0.5
com.apple.driver.AppleCredentialManager 1.0
com.apple.driver.DiskImages 398
com.apple.iokit.IOStorageFamily 2.0
com.apple.iokit.IOReportFamily 31
com.apple.driver.AppleFDEKeyStore 28.30
com.apple.driver.AppleACPIPlatform 3.1
com.apple.iokit.IOPCIFamily 2.9
com.apple.iokit.IOACPIFamily 1.4
com.apple.kec.corecrypto 1.0
com.apple.kec.pthread 1
com.apple.kec.Libm 1
Unable to gather system configuration information.

bearhead wrote:I'm sick of the obstacles, I just want to make music.

Why are you using Nukai gear then?

I have no interest in that discussion, I just need my gear to work like it's supposed to, and it would be great if someone could help.

Update:

I decided to open it up and take a look, and I randomly thought to clean the contacts with rubbing alcohol. I just plugged it in and turned it on, and it seems to be working again.

Crossing my fingers that this was the problem... Can dirty contacts cause these kinds of issues, or am I being naive?