This repository contains scripts that can be run on rooted Shannon-based Pixel devices to enable modem features which are off by default.
Some of these features may not work, may be buggy, or could crash your modem entirely.
Warning
Please only use the scripts made for your device. These nvitems are not the same across different devices, and what works on one may not work on another.
If you end up in a non-usable modem state, you can wipe all custom nvitems and try again.
- Your device must be rooted. If it's not, this won't work. If you want to root your device, look elsewhere for a guide.
- You must close any apps that might be using the modem's diagnostics port, like Network Signal Guru. It might take a minute for any app to close its connection to the modem completely.
- Spawn an on-device shell via ADB:
adb shell - Enter superuser mode:
su - Copy and paste the contents of any script for your device and execute it.
- You should see various "OK" messages in response. If you don't the commands won't have taken any effect.
- Reboot your device for the changes to take effect. (You can do this from the shell using
reboot.)
To clear custom nvitems, use the script provided in a root ADB shell, then reboot:
# Spawn ADB shell over USB
adb shell
# Use root
su
# Back up custom nvitems
mv /mnt/vendor/efs/nv_normal.bin /mnt/vendor/efs/nv_normal.bin.old
mv /mnt/vendor/efs/nv_normal.bin.md5 /mnt/vendor/efs/nv_normal.bin.md5.old
# Reboot the device
rebootTo set an nv item:
echo 'AT+GOOGSETNV="<NVITEM NAME>",<INDEX>,"<VALUE>"\r' > /dev/umts_router & cat /dev/umts_router
# For example...
echo 'AT+GOOGSETNV="NR.CONFIG.MODE",0,"11"\r' > /dev/umts_router & cat /dev/umts_routerTo get an nv item:
echo 'AT+GOOGGETNV="<NVITEM NAME>"\r' > /dev/umts_router & cat /dev/umts_router
# For example...
echo 'AT+GOOGGETNV="NR.CONFIG.MODE"\r' > /dev/umts_router & cat /dev/umts_routerAs an example, here's the differences in a UE capability response on a Pixel 7 Pro connected to EE UK.
You can see the full capability requests in the examples folder.
In a nutshell:
- Enables UE Tx port antenna switching
- Enables TM5 and TM9
- Enables cross-carrier scheduling allowing signalling referring to a carrier to be transmitted over the signalling channel of another carrier
- Enable 256 QAM UL
--- ue cap qpr1
+++ ue cap qpr1 modified
@@ -24,8 +24,8 @@
profile0x0104-r15 : false
maxNumberROHC-ContextSessions : cs24
phyLayerParameters
- ue-TxAntennaSelectionSupported : false
- ue-SpecificRefSigsSupported : false
+ ue-TxAntennaSelectionSupported : true
+ ue-SpecificRefSigsSupported : true
rf-Parameters
supportedBandListEUTRA
[0]
@@ -435,10 +435,13 @@
EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH PS handover : not supported
UTRAN TDD measurements, reporting and measurement reporting event B2 in E-UTRA connected mode : not supported
EUTRA RRC_CONNECTED to UTRA TDD CELL_DCH CS handover : not supported
- Measurement reporting event: Event B1 - Neighbour > threshold for UTRAN FDD : not supported
+ Measurement reporting event: Event B1 - Neighbour > threshold for UTRAN FDD : supported
DCI format 3a : not supported
nonCriticalExtension
nonCriticalExtension
+ phyLayerParameters-v9d0
+ tm5-FDD-r9 : supported
+ tm5-TDD-r9 : supported
nonCriticalExtension
nonCriticalExtension
nonCriticalExtension
@@ -1016,6 +1019,30 @@
ue-Category-v1020 : 7
phyLayerParameters-v1020
tm9-With-8Tx-FDD-r10 : supported
+ crossCarrierScheduling-r10 : supported
+ simultaneousPUCCH-PUSCH-r10 : supported
+ multiClusterPUSCH-WithinCC-r10 : supported
+ nonContiguousUL-RA-WithinCC-List-r10
+ [0]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [1]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [2]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [3]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [4]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [5]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [6]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [7]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [8]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
+ [9]
+ nonContiguousUL-RA-WithinCC-Info-r10 : supported
rf-Parameters-v1020
supportedBandCombination-r10
[0]
@@ -3771,23 +3798,29 @@
[3]
interRAT-NeedForGaps : true
featureGroupIndRel10-r10
- DMRS with OCC (orthogonal cover code) and SGH (sequence group hopping) disabling : not supported
- Trigger type 1 SRS (aperiodic SRS) transmission (Up to X ports) : not supported
+ DMRS with OCC (orthogonal cover code) and SGH (sequence group hopping) disabling : supported
+ Trigger type 1 SRS (aperiodic SRS) transmission (Up to X ports) : supported
PDSCH TM9 when up to 4 CSI reference signal ports are configured : supported
PDSCH TM9 for TDD when 8 CSI reference signal ports are configured : supported
- PUCCH RM2-0 when PDSCH TM9 is configured and RM2-1 when PDSCH TM9 and up to 4 CSI reference signal ports are configured : not supported
- PUCCH RM2-1 when PDSCH TM9 and 8 CSI reference signal ports are configured : not supported
+ PUCCH RM2-0 when PDSCH TM9 is configured and RM2-1 when PDSCH TM9 and up to 4 CSI reference signal ports are configured : supported
+ PUCCH RM2-1 when PDSCH TM9 and 8 CSI reference signal ports are configured : supported
PUSCH RM2-0 when PDSCH TM9 is configured and RM2-2 when PDSCH TM9 and up to 4 CSI reference signal ports are configured : not supported
- PUSCH RM2-2 when PDSCH TM9 and 8 CSI reference signal ports are configured : not supported
- PUCCH RM1-1 submode 1 : not supported
- PUCCH RM1-1 submode 2 : not supported
+ PUSCH RM2-2 when PDSCH TM9 and 8 CSI reference signal ports are configured : supported
+ PUCCH RM1-1 submode 1 : supported
+ PUCCH RM1-1 submode 2 : supported
Measurement reporting trigger Event A6 : supported
SCell addition within the Handover to EUTRA procedure : supported
Trigger type 0 SRS (periodic SRS) transmission on X Serving Cells : supported
Reporting of both UTRA CPICH RSCP and Ec/N0 in a Measurement Report : supported
- Time domain ICIC RLM/RRM / ICIC RRM / ICIC CSI measurement sf restriction for the serving cell / neighbour cells : not supported
+ Time domain ICIC RLM/RRM / ICIC RRM / ICIC CSI measurement sf restriction for the serving cell / neighbour cells : supported
Relative transmit phase continuity for spatial multiplexing in UL : not supported
+ ue-BasedNetwPerfMeasParameters-r10
+ loggedMeasurementsIdle-r10 : supported
+ standaloneGNSS-Location-r10 : supported
nonCriticalExtension
+ fdd-Add-UE-EUTRA-Capabilities-v1060
+ phyLayerParameters-v1060
+ pmi-Disabling-r10 : supported
rf-Parameters-v1060
supportedBandCombinationExt-r10
[0]
@@ -3883,12 +3916,21 @@
nonCriticalExtension
pdcp-Parameters-v1130
pdcp-SN-Extension-r11 : supported
+ supportRohcContextContinue-r11 : supported
phyLayerParameters-v1130
crs-InterfHandl-r11 : supported
+ ePDCCH-r11 : supported
+ multiACK-CSI-Reporting-r11 : supported
+ ss-CCH-InterfHandl-r11 : supported
+ tdd-SpecialSubframe-r11 : supported
+ txDiv-PUCCH1b-ChSelect-r11 : supported
+ ul-CoMP-r11 : supported
rf-Parameters-v1130
measParameters-v1130
interRAT-ParametersCDMA2000-v1130
otherParameters-r11
+ powerPrefInd-r11 : supported
+ ue-Rx-TxTimeDiffMeasurements-r11 : supported
nonCriticalExtension
ue-Category-v1170 : 10
nonCriticalExtension
@@ -3902,6 +3944,12 @@
nonCriticalExtension
ue-Category-v11a0 : 12
nonCriticalExtension
+ phyLayerParameters-v1250
+ e-HARQ-Pattern-FDD-r12 : supported
+ enhanced-4TxCodebook-r12 : supported
+ pusch-FeedbackMode-r12 : supported
+ noResourceRestrictionForTTIBundling-r12 : supported
+ discoverySignalsInDeactSCell-r12 : supported
rf-Parameters-v1250
supportedBandListEUTRA-v1250
[0]
@@ -3933,26 +3981,63 @@
[9]
dl-256QAM-r12 : supported
freqBandPriorityAdjustment-r12 : supported
+ rlc-Parameters-r12
+ extended-RLC-LI-Field-r12 : supported
ue-CategoryDL-r12 : 12
ue-CategoryUL-r12 : 13
measParameters-v1250
+ timerT312-r12 : supported
+ alternativeTimeToTrigger-r12 : supported
+ incMonEUTRA-r12 : supported
+ incMonUTRA-r12 : supported
extendedMaxMeasId-r12 : supported
+ extendedRSRQ-LowerRange-r12 : supported
+ rsrq-OnAllSymbols-r12 : supported
+ csi-RS-DiscoverySignalsMeas-r12 : supported
nonCriticalExtension
ue-CategoryDL-v1260 : 16
nonCriticalExtension
nonCriticalExtension
+ phyLayerParameters-v1280
+ alternativeTBS-Indices-r12 : supported
nonCriticalExtension
pdcp-Parameters-v1310
+ pdcp-SN-Extension-18bits-r13 : supported
rlc-Parameters-v1310
+ extendedRLC-SN-SO-Field-r13 : supported
+ mac-Parameters-v1310
+ extendedMAC-LengthField-r13 : supported
+ extendedLongDRX-r13 : supported
+ phyLayerParameters-v1310
+ codebook-HARQ-ACK-r13 : '01'B(1)
+ crossCarrierScheduling-B5C-r13 : supported
+ fdd-HARQ-TimingTDD-r13 : supported
+ pucch-Format4-r13 : supported
+ pucch-Format5-r13 : supported
+ pucch-SCell-r13 : supported
+ spatialBundling-HARQ-ACK-r13 : supported
+ supportedBlindDecoding-r13
+ maxNumberDecoding-r13 : 1
+ pdcch-CandidateReductions-r13 : supported
+ skipMonitoringDCI-Format0-1A-r13 : supported
+ uci-PUSCH-Ext-r13 : supported
+ crs-InterfMitigationTM10-r13 : supported
+ pdsch-CollisionHandling-r13 : supported
rf-Parameters-v1310
eNB-RequestedParameters-r13
requestedCCsDL-r13 : 5
requestedCCsUL-r13 : 2
maximumCCsRetrieval-r13 : supported
skipFallbackCombinations-r13 : supported
+ measParameters-v1310
+ rs-SINR-Meas-r13 : supported
interRAT-ParametersWLAN-r13
laa-Parameters-r13
+ crossCarrierSchedulingLAA-DL-r13 : supported
+ csi-RS-DRS-RRM-MeasurementsLAA-r13 : supported
downlinkLAA-r13 : supported
+ endingDwPTS-r13 : supported
+ secondSlotStartingPosition-r13 : supported
wlan-IW-Parameters-v1310
lwip-Parameters-r13
nonCriticalExtension
@@ -3961,13 +4046,332 @@
nonCriticalExtension
nonCriticalExtension
ce-Parameters-v1350
+ unicastFrequencyHopping-r13 : supported
nonCriticalExtension
nonCriticalExtension
phyLayerParameters-v1430
+ alternativeTBS-Index-r14 : supported
+ mac-Parameters-v1430
+ shortSPS-IntervalFDD-r14 : supported
+ shortSPS-IntervalTDD-r14 : supported
+ skipUplinkDynamic-r14 : supported
+ skipUplinkSPS-r14 : supported
+ multipleUplinkSPS-r14 : supported
+ dataInactMon-r14 : supported
rlc-Parameters-v1430
rf-Parameters-v1430
+ supportedBandCombination-v1430
+ [0]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [2]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [3]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [4]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [5]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [6]
+ bandParameterList-v1430
+ [0]
+ [7]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [8]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [9]
+ bandParameterList-v1430
+ [0]
+ [10]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [11]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [12]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [13]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [14]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [15]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [16]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [17]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [18]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [19]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [20]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [21]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [22]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [23]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [24]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [25]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [26]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [27]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [28]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [29]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [30]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [31]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [32]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [33]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [34]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [35]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [36]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [37]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [38]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [39]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [40]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [41]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [42]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [43]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [44]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [45]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [46]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [47]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [48]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [49]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [50]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [51]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [52]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [2]
+ [53]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
+ [2]
+ [54]
+ bandParameterList-v1430
+ [0]
+ [1]
+ [2]
+ ul-256QAM-r14 : supported
+ [55]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-perCC-InfoList-r14
+ [0]
+ ul-256QAM-perCC-r14 : supported
+ [1]
+ ul-256QAM-perCC-r14 : supported
+ [56]
+ bandParameterList-v1430
+ [0]
+ ul-256QAM-r14 : supported
+ [1]
+ [57]
+ bandParameterList-v1430
+ [0]
+ [1]
+ ul-256QAM-r14 : supported
diffFallbackCombReport-r14 : supported
+ laa-Parameters-v1430
+ crossCarrierSchedulingLAA-UL-r14 : supported
+ uplinkLAA-r14 : supported
+ twoStepSchedulingTimingInfo-r14 : nPlus1
+ uss-BlindDecodingAdjustment-r14 : supported
+ uss-BlindDecodingReduction-r14 : supported
+ outOfSequenceGrantHandling-r14 : supported
otherParameters-v1430
+ mmtel-Parameters-r14
+ delayBudgetReporting-r14 : supported
+ pusch-Enhancements-r14 : supported
+ recommendedBitRate-r14 : supported
+ recommendedBitRateQuery-r14 : supported
ce-Parameters-v1430
nonCriticalExtension
lwa-Parameters-v1440
@@ -4062,7 +4466,9 @@
featureSetsUL-PerCC-r15
[0]
supportedMIMO-CapabilityUL-r15 : twoLayers
+ ul-256QAM-r15 : supported
[1]
+ ul-256QAM-r15 : supported
pdcp-ParametersNR-r15
rohc-Profiles-r15
profile0x0001-r15 : false