No Imei Comes Up After Board Replacement Iphone 11

Chosen Solution

I have replaced the board totally. Device restores without problem. But I cant get Imei in anyway. I have checked the diode modes around baseband and bbpmu but seems no short around it. Where else should I look for this?

hello there, the question is why did you move the board to a different housing. Second question, what did you measure and where. The motherboard of model 11 onwards is very different (as you know) from its predecessors. Not only because of the floor, but the entire connection logic has been changed. This requires a change in the diagnostic mode and especially in the way the fault is tracked. The most common fault that causes problems with the radio system is a broken connection with the interposer. Start with this. The hint will be that after performing a system reset you are like blind and deaf on a busy streetway. This is obviously a metaphor, but it reflects the full situation in your motherboard. Remember that network service problems can originate from any part of the radio system and general power supply. I am currently finishing a youtube video about the baseband issue on the model 11. It will be ready in a few days. Sit back and enjoy the movie. You’re sure to learn a lot, as well as the Model 11 Temperature Control material. Coming soon, there will be an entire season dedicated exclusively to the Model iPhone 11. Every type of fault and repair methods. Completely free. I hope to finish before the end of the year. regards,

First of all thank you for your quick reply. I have changed the logic board because it was not turning on and found out that Lots of pads were cut off from the ways. So instead of making a way for all them changed the housing. I will check for the radio system but new on 11 so where can I look at directly? By the way I have checked the caps resistors around baseband and bb pmu and also pads on diode mode. Everything was perfect. So I was just going to start to measure the top layer but got your reply. Will check the radio too if you can light me up that where I can start with. Thank you Emre

I really dont know where else I need to check except that pin everything seems okay. And I have tried 3 different chips for there all same. I didnt understand. I remove the chip then it gives OL and no cut on the line there. But when I put the chip then it goes to short. The diode value must be aroudn 350 - 390 on pad 243 on PA_HB_K on line 50_XCVR_RX6_MB_UHB_PRX but it reads 0.01 after I put the chip. All the chips are broken and does this effect device cant get imei? Or should it be something else?

UPDATE: After I restore, I just found on 3utools there is no information for wifi serial number, wifi module and also the device restarts. And this is the log I got from the device: panic(cpu 1 caller 0xfffffff015c77618): userspace watchdog timeout: no successful checkins from thermalmonitord service returned not alive with context : is_alive_func returned unhealthy : current 3bffffffffffc, mask 1ffffffffffff, expected 1ffffffffffff. SD: 0 BC: 1 RC: -1 BS: 2, Missing sensor(s): TG0B TG0V mic2 service: backboardd, total successful checkins in 200 seconds: 19, last successful checkin: 0 seconds ago service: SpringBoard, total successful checkins in 169 seconds: 17, last successful checkin: 0 seconds ago service: mediaserverd, total successful checkins in 200 seconds: 18, last successful checkin: 0 seconds ago service: logd, total successful checkins in 200 seconds: 19, last successful checkin: 0 seconds ago service: thermalmonitord, no successful checkins in 200 seconds service: runningboardd, total successful checkins in 200 seconds: 19, last successful checkin: 0 seconds ago service: wifid, total successful checkins in 200 seconds: 19, last successful checkin: 0 seconds ago service: configd, total successful checkins in 200 seconds: 18, last successfu Debugger message: panic Memory ID: 0x1 OS release type: User OS version: 20B101 Kernel version: Darwin Kernel Version 22.1.0: Thu Oct 6 19:32:38 PDT 2022; root:xnu-8792.42.7~1/RELEASE_ARM64_T8030 Fileset Kernelcache UUID: 59C2F1BFB41BDBE006709A8AB5D82681 Kernel UUID: 17EB6472-1780-3881-B28A-6CCF175F7F46 Boot session UUID: 728721B7-F811-4001-B262-54E402EBCFAA iBoot version: iBoot-8419.40.112 secure boot?: YES roots installed: 0 Paniclog version: 14 KernelCache slide: 0x000000000d610000 KernelCache base: 0xfffffff014614000 Kernel slide: 0x000000000e28c000 Kernel text base: 0xfffffff015290000 Kernel text exec slide: 0x000000000e344000 Kernel text exec base: 0xfffffff015348000 mach_absolute_time: 0x1208f2dd1 Epoch Time: sec usec Boot : 0x00001988 0x000d412c Sleep : 0x00000000 0x00000000 Wake : 0x00000000 0x00000000 Calendar: 0x00001a43 0x000e0333 Zone info: Zone map: 0xffffffe11ac14000 - 0xffffffe71ac14000 . VM : 0xffffffe11ac14000 - 0xffffffe201278000 . RO : 0xffffffe201278000 - 0xffffffe24df44000 . GEN0 : 0xffffffe24df44000 - 0xffffffe3345a8000 . GEN1 : 0xffffffe3345a8000 - 0xffffffe41ac0c000 . GEN2 : 0xffffffe41ac0c000 - 0xffffffe501274000 . GEN3 : 0xffffffe501274000 - 0xffffffe5e78dc000 . DATA : 0xffffffe5e78dc000 - 0xffffffe71ac14000 Metadata: 0xffffffe71ac24000 - 0xffffffe71c424000 Bitmaps : 0xffffffe71c424000 - 0xffffffe71da04000 CORE 0 recently retired instr at 0xfffffff0154ce85c CORE 1 recently retired instr at 0xfffffff0154cd308 CORE 2 recently retired instr at 0xfffffff0154ce85c CORE 3 recently retired instr at 0xfffffff0154ce85c CORE 4 recently retired instr at 0xfffffff0154ce85c CORE 5 recently retired instr at 0xfffffff0154ce85c TPIDRx_ELy = {1: 0xffffffe41b796bd8 0: 0x0000000000000001 0ro: 0x000000016f10b0e0 } CORE 0: PC=0x000000020acbeca0, LR=0x00000001cc0f3aac, FP=0x000000016de96500 CORE 1 is the one that panicked. Check the full backtrace for details. CORE 2: PC=0x00000001cc0f281c, LR=0x00000001cc0f59fc, FP=0x000000016fb79fd0 CORE 3: PC=0xfffffff0153c29b4, LR=0xfffffff0153c29b4, FP=0xffffffee8aaf7f00 CORE 4: PC=0xfffffff0153c29b4, LR=0xfffffff0153c29b4, FP=0xffffffee8a863f00 CORE 5: PC=0xfffffff0153c29b4, LR=0xfffffff0153c29b4, FP=0xffffffe8a5637f00 Compressor Info: 0% of compressed pages limit (OK) and 0% of segments limit (OK) with 0 swapfiles and OK swap space Total cpu_usage: 41404168 Thread task pri cpu_usage 0xffffffe41b796bd8 watchdogd 97 0 0xffffffe41b75b618 backboardd 63 0 0xffffffe41bf850f8 launchd 37 43 0xffffffe41afd7290 kernel_task 0 5839853 0xffffffe41afd5e68 kernel_task 0 0 Panicked task 0xffffffe41a0775c8: 292 pages, 3 threads: pid 57: watchdogd Panicked thread: 0xffffffe41b796bd8, backtrace: 0xffffffee8a8270d0, tid: 1506 lr: 0xfffffff01538eebc fp: 0xffffffee8a827110 lr: 0xfffffff01538ec90 fp: 0xffffffee8a827180 lr: 0xfffffff0154d49dc fp: 0xffffffee8a8271a0 lr: 0xfffffff0154c7968 fp: 0xffffffee8a827210 lr: 0xfffffff0154c6364 fp: 0xffffffee8a8272d0 lr: 0xfffffff01534f610 fp: 0xffffffee8a8272e0 lr: 0xfffffff01538e6a4 fp: 0xffffffee8a827690 lr: 0xfffffff015aa644c fp: 0xffffffee8a8276b0 lr: 0xfffffff015c77618 fp: 0xffffffee8a8276d0 lr: 0xfffffff015c76ea0 fp: 0xffffffee8a8276f0 lr: 0xfffffff015c75d54 fp: 0xffffffee8a827810 lr: 0xfffffff015a1ef38 fp: 0xffffffee8a827840 lr: 0xfffffff015a1f220 fp: 0xffffffee8a8279d0 lr: 0xfffffff015498a6c fp: 0xffffffee8a827af0 lr: 0xfffffff015394e80 fp: 0xffffffee8a827b90 lr: 0xfffffff015367fb4 fp: 0xffffffee8a827bf0 lr: 0xfffffff015380ca4 fp: 0xffffffee8a827c90 lr: 0xfffffff01538111c fp: 0xffffffee8a827d80 lr: 0xfffffff0154bc6cc fp: 0xffffffee8a827e50 lr: 0xfffffff0154c66ac fp: 0xffffffee8a827f10 lr: 0xfffffff01534f610 fp: 0xffffffee8a827f20 Kernel Extensions in backtrace: com.apple.driver.AppleARMWatchdogTimer(1.0)[E87C0F43-E180-33BE-B856-D3276A92C0F8]@0xfffffff015c73250->0xfffffff015c77617 dependency: com.apple.driver.AppleARMPlatform(1.0.2)[B5937EC7-0D89-3C0B-92EB-42309DD87933]@0xfffffff015c26020->0xfffffff015c7324f last started kext at 555924702: com.apple.driver.AppleUSBEthernetDevice 7.0 (addr 0xfffffff014a6caa0, size 4658) loaded kexts: com.apple.driver.AppleUSBEthernetDevice 7.0 com.apple.driver.AppleIDAMInterface 1 com.apple.driver.AppleUSBDeviceNCM 5.0.0 com.apple.iokit.IOAccessoryPortUSB 1.0.0 com.apple.driver.AppleUSBDeviceMux 1.0.0d1 com.apple.driver.AppleUSBMike 1.0.0d1 com.apple.driver.AOPTouchKext 311 com.apple.driver.AppleAOPAD5860 600.99 com.apple.driver.AppleAOPHaptics 600.99 com.apple.driver.AppleAOPVoiceTrigger 200.4 com.apple.nke.l2tp 1.9 com.apple.filesystems.tmpfs 1 com.apple.driver.AppleCS42L77Audio 600.99 com.apple.driver.AppleGenericMultitouch 22 com.apple.filesystems.lifs 1 com.apple.filesystems.apfs 2142.40.13 com.apple.IOTextEncryptionFamily 1.0.0 com.apple.filesystems.hfs.kext 627.40.1 com.apple.AppleFSCompression.AppleFSCompressionTypeZlib 1.0.0 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