diff --git a/META-INF/CERT.RSA b/META-INF/CERT.RSA
index afee940..47ab5ba 100755
Binary files a/META-INF/CERT.RSA and b/META-INF/CERT.RSA differ
diff --git a/META-INF/CERT.SF b/META-INF/CERT.SF
index 8baabc6..d405536 100755
--- a/META-INF/CERT.SF
+++ b/META-INF/CERT.SF
@@ -1,42 +1,42 @@
 Signature-Version: 1.0
-SHA1-Digest-Manifest: VPpgQQ7LSjY+Z6GEAetX88Sq3zs=
+SHA1-Digest-Manifest: S1jkemNzsCWmILbNRVr9pweWGpM=
 Created-By: 1.0 (Android SignApk)
 
 Name: META-INF/com/google/android/updater-script
-SHA1-Digest: fsi8bOX9NW8hK3njvecIN2OFUSM=
+SHA1-Digest: zDcudWyvbC+Hr2wbCmbhLekdHQY=
 
 Name: firmware-update/BTFM.bin
-SHA1-Digest: C8xgMXPjC+f7A0BP+pYjWBsTtY4=
+SHA1-Digest: 6O1dL8XTQWAwvwYyLC2rBHrfp3k=
 
 Name: META-INF/com/miui/miui_update
-SHA1-Digest: tIzK44ISDCJECm1WsD6R9f9sgEk=
+SHA1-Digest: Ej7fwB4+HPn7zBckWiNNpybvd5s=
 
 Name: system.patch.dat
 SHA1-Digest: 774VWw1Wa8Y+IPKHHCeM6N//yzE=
 
 Name: system.transfer.list
-SHA1-Digest: Ek9Z8Czo8cvEMflTJHHcAn4UMd4=
+SHA1-Digest: 4lsR3gdrPyNPFTCpybtD6FbV52s=
 
 Name: firmware-update/devcfg.mbn
-SHA1-Digest: wj+RGN71HnaiaK7JkkaHEVDiHwM=
+SHA1-Digest: PcOp2odUMG0dl4zEyc4/N3DUtlo=
 
 Name: firmware-update/keymaster.mbn
-SHA1-Digest: 652qutD4FJiCbVT/EgFhguutmP0=
+SHA1-Digest: +qJKXxs0AaUVOyeFPy11SSx+8wQ=
 
 Name: META-INF/com/android/metadata
-SHA1-Digest: D/5e1mFPJ8iR/fRtW1NEUsJTO28=
+SHA1-Digest: jIK2lTjq+g5xHuByv9s5XF6+XVo=
 
 Name: firmware-update/xbl.elf
-SHA1-Digest: 9JnJfZMFQgHOIeCXfNCu4vliW7c=
+SHA1-Digest: JBugruEstpPaWRwrilOC+DvricA=
 
 Name: firmware-update/NON-HLOS.bin
-SHA1-Digest: 6munUHm3r5CKDzaDjemJcpU5CGc=
+SHA1-Digest: tXF7Up6r6VT/sSjc2/2+PctQoX8=
 
 Name: firmware-update/cmnlib64.mbn
-SHA1-Digest: QIrO/Fnc8HoWclfm+OAa4RlHkE8=
+SHA1-Digest: Ye5k6sHlx2RspdNPwBObkV9jhZ4=
 
 Name: file_contexts.bin
-SHA1-Digest: WdsAjxsyCgqij0lbmj3Dz9rifwk=
+SHA1-Digest: nw11tANknIpAG8/3BUMnScoVyi0=
 
 Name: firmware-update/adspso.bin
 SHA1-Digest: Y7WRiL54hF3mxInDY6zvK2DDTyk=
@@ -48,34 +48,34 @@ Name: META-INF/com/google/android/update-binary
 SHA1-Digest: q+VIJzVBEW6HNnI2NAlxWMZxygY=
 
 Name: firmware-update/hyp.mbn
-SHA1-Digest: E/uUiR+Hq0rZcBb4IwDDO4qHGVw=
+SHA1-Digest: T6TYECZ4LYFn1tS7pGkEqRa9vTQ=
 
 Name: boot.img
-SHA1-Digest: NxVBEndduo+YikfYFuxaM3nSSZQ=
+SHA1-Digest: gP+H2tMzDUckXV/w+wIoI2Z8kuo=
 
 Name: firmware-update/lksecapp.mbn
-SHA1-Digest: SkF74uelalmyQqdddZfbiDNv1dI=
+SHA1-Digest: Ppl1iZrTH+NA4nl8pxVtjJIF9RA=
 
 Name: firmware-update/splash.img
 SHA1-Digest: B0053eB/PE9v353UO5NkmMBhnpw=
 
 Name: system.new.dat
-SHA1-Digest: 811MxP4snhpCCJ6LDN5N1eVEJJQ=
+SHA1-Digest: cXm4D+E8sNyhDqCk/PvQ0xQ2DAw=
 
 Name: firmware-update/rpm.mbn
-SHA1-Digest: r90zoACU4Tap+7tY11i0TGm27y4=
+SHA1-Digest: C876ofIR9+REtZdHM2w9MkT2buk=
 
 Name: firmware-update/tz.mbn
-SHA1-Digest: FexFk5lvzKkpBTTQzlSADvAjvlY=
+SHA1-Digest: iAfL+a9YUFYiTPOxHo8IblZhOfM=
 
 Name: firmware-update/logo.img
 SHA1-Digest: xkyJEUEVoBbHuNat9DVYjSoMW4w=
 
 Name: firmware-update/pmic.elf
-SHA1-Digest: zWMi9FXpjDulh2PuS4ZQP7rbiDw=
+SHA1-Digest: H5rmNXrCxIftsmB1mdITcu2Qs/k=
 
 Name: firmware-update/cmnlib.mbn
-SHA1-Digest: WqkbdTJeGT2fQ9coiUbJdKFQZxU=
+SHA1-Digest: F5g2KdO8bRRk99Ynkg4vuyklLXM=
 
 Name: firmware-update/emmc_appsboot.mbn
 SHA1-Digest: wcR8WefUx//lqKOrDTuI84MnN5U=
diff --git a/META-INF/MANIFEST.MF b/META-INF/MANIFEST.MF
index c4ed1c2..6dc65a1 100755
--- a/META-INF/MANIFEST.MF
+++ b/META-INF/MANIFEST.MF
@@ -2,40 +2,40 @@ Manifest-Version: 1.0
 Created-By: 1.0 (Android SignApk)
 
 Name: META-INF/com/google/android/updater-script
-SHA1-Digest: 4+o1rJEip6kJf0Rpuwv34h1vz3M=
+SHA1-Digest: zZlb7YZQDDHE+iVyRC0XZs/gCa8=
 
 Name: firmware-update/BTFM.bin
-SHA1-Digest: uPQsjIErdLJqBcQm/eQgI90WA2Q=
+SHA1-Digest: NEyFRtZnRQERTwE42PB8FBaTwIo=
 
 Name: META-INF/com/miui/miui_update
-SHA1-Digest: rrx3NX0t6cf5TkHL+DCiIA6LHd8=
+SHA1-Digest: VyEH3iN2mZgaJ7LxOztjUv+XGMw=
 
 Name: system.patch.dat
 SHA1-Digest: 2jmj7l5rSw0yVb/vlWAYkK/YBwk=
 
 Name: system.transfer.list
-SHA1-Digest: 8hW1/g/6B4cpDHY3rwx68RNPJrw=
+SHA1-Digest: +EossP1Oi7psjxuZxRl3z0qYBog=
 
 Name: firmware-update/devcfg.mbn
-SHA1-Digest: DWzHvyE/+2YbUkICcLGCGiknpyQ=
+SHA1-Digest: gB7uvZlPT08IL+c6a0czSDwY4EQ=
 
 Name: firmware-update/keymaster.mbn
-SHA1-Digest: FP6UfaO7t+yH/p+k5td6KAvoOzo=
+SHA1-Digest: DsfJds4gAExNa0ut/JHZFFuw9L4=
 
 Name: META-INF/com/android/metadata
-SHA1-Digest: qyN8SFisD6NYI1cJJiICehJ+cUM=
+SHA1-Digest: vlgAINWc9ud+Rmx9ghUaektdefY=
 
 Name: firmware-update/xbl.elf
-SHA1-Digest: OmP9lfpWbk2TmYNNQGs0QyWVr3U=
+SHA1-Digest: eEAEfUQjk57S3lsS7PM3vcJu+dw=
 
 Name: firmware-update/NON-HLOS.bin
-SHA1-Digest: 0rHTxIth3MyfUj880ttJF2ULX54=
+SHA1-Digest: f1XjVxjk8gY2KEmDTMpGyX3chsM=
 
 Name: firmware-update/cmnlib64.mbn
-SHA1-Digest: LUuT+ajHZpbWvJg2OnvuCuqjBWs=
+SHA1-Digest: FeDOyEN9gxOxatGGlNxyzsoUQ4Y=
 
 Name: file_contexts.bin
-SHA1-Digest: 8W+OXBdYDhmHRJyfsplSU0vo3YY=
+SHA1-Digest: +khB6Es8MuFkHiO15ooqV+6qsls=
 
 Name: firmware-update/adspso.bin
 SHA1-Digest: SpUFtDvTOsbafqDZqJyr6nUzjW4=
@@ -47,34 +47,34 @@ Name: META-INF/com/google/android/update-binary
 SHA1-Digest: KSBsOU10IQl6qxZ8uqEnz93w1rA=
 
 Name: firmware-update/hyp.mbn
-SHA1-Digest: 2J4SjMBS7E6+bblklotRZ6kqb3Y=
+SHA1-Digest: v7bl7MIyIFlimSp7hd67RX0C1Iw=
 
 Name: boot.img
-SHA1-Digest: MTAh+YjXK/ym/oGXz+VUcaZI0x4=
+SHA1-Digest: hGxE4owIdHGmq/C7WZ71pGPpx9w=
 
 Name: firmware-update/lksecapp.mbn
-SHA1-Digest: Z092CDvnISfkTMgflN4lDa1rCsw=
+SHA1-Digest: +YCcp6f/Vmmqkm09dXDTJ8vNXD4=
 
 Name: firmware-update/splash.img
 SHA1-Digest: M3qymH8q+UewyABHIvDvnV1jEh8=
 
 Name: system.new.dat
-SHA1-Digest: M1Den4MnrjkOiNpHoJNkq/HMJOE=
+SHA1-Digest: R4FA63MYZ12hJym6gJSwP52M0RI=
 
 Name: firmware-update/rpm.mbn
-SHA1-Digest: 4vJHhZowvjDTgCgMZEg5EON7Anc=
+SHA1-Digest: YRIBqaZaXcxj9Ji/KtCPVLZtiP4=
 
 Name: firmware-update/tz.mbn
-SHA1-Digest: cCB7xuNSzopL26iIgS33TE4Th1A=
+SHA1-Digest: iZ0YKexahgIJjN18m9loiCw+hmI=
 
 Name: firmware-update/logo.img
 SHA1-Digest: PlEomJ7hWkpCqEUVc0ca47NCF4c=
 
 Name: firmware-update/pmic.elf
-SHA1-Digest: tT+gsE27F35fvAEfOyEQtIYcaDA=
+SHA1-Digest: 1m5Uzcqs/7oNfmCjcBhldWG5y+k=
 
 Name: firmware-update/cmnlib.mbn
-SHA1-Digest: FKFJBrNmb9JzfH7DizLyoGU6sCA=
+SHA1-Digest: M5a8Cg9z0/BjG/HfQrDCo1EbjYQ=
 
 Name: firmware-update/emmc_appsboot.mbn
 SHA1-Digest: gQqWPLzM7i3l+lhLS0WgUxV8zYk=
diff --git a/META-INF/com/android/metadata b/META-INF/com/android/metadata
index 38a711a..9914f23 100755
--- a/META-INF/com/android/metadata
+++ b/META-INF/com/android/metadata
@@ -1,5 +1,5 @@
 ota-required-cache=0
 ota-type=BLOCK
-post-build=Xiaomi/capricorn/capricorn:7.0/NRD90M/8.2.8:user/release-keys
-post-timestamp=1518024566
+post-build=Xiaomi/capricorn/capricorn:7.0/NRD90M/8.3.1:user/release-keys
+post-timestamp=1519836866
 pre-device=capricorn
diff --git a/META-INF/com/google/android/updater-script b/META-INF/com/google/android/updater-script
index 45ab556..5f35c3b 100755
--- a/META-INF/com/google/android/updater-script
+++ b/META-INF/com/google/android/updater-script
@@ -1,5 +1,5 @@
 getprop("ro.product.device") == "capricorn" || abort("E3004: This package is for \"capricorn\" devices; this is a \"" + getprop("ro.product.device") + "\".");
-ui_print("Target: Xiaomi/capricorn/capricorn:7.0/NRD90M/8.2.8:user/release-keys");
+ui_print("Target: Xiaomi/capricorn/capricorn:7.0/NRD90M/8.3.1:user/release-keys");
 show_progress(0.200000, 10);
 
 # ---- radio update tasks ----
diff --git a/META-INF/com/miui/miui_update b/META-INF/com/miui/miui_update
index 34ec977..304c0c2 100755
Binary files a/META-INF/com/miui/miui_update and b/META-INF/com/miui/miui_update differ
diff --git a/firmware-update/BTFM.bin b/firmware-update/BTFM.bin
index a412b6c..e84aaff 100755
Binary files a/firmware-update/BTFM.bin and b/firmware-update/BTFM.bin differ
diff --git a/firmware-update/NON-HLOS.bin b/firmware-update/NON-HLOS.bin
index f7fb2e7..e08a3c6 100755
Binary files a/firmware-update/NON-HLOS.bin and b/firmware-update/NON-HLOS.bin differ
diff --git a/firmware-update/cmnlib.mbn b/firmware-update/cmnlib.mbn
index f53359f..6378a30 100755
Binary files a/firmware-update/cmnlib.mbn and b/firmware-update/cmnlib.mbn differ
diff --git a/firmware-update/cmnlib64.mbn b/firmware-update/cmnlib64.mbn
index 29e9d34..e4e388c 100755
Binary files a/firmware-update/cmnlib64.mbn and b/firmware-update/cmnlib64.mbn differ
diff --git a/firmware-update/devcfg.mbn b/firmware-update/devcfg.mbn
index 2c58f4a..b5d2a64 100755
Binary files a/firmware-update/devcfg.mbn and b/firmware-update/devcfg.mbn differ
diff --git a/firmware-update/hyp.mbn b/firmware-update/hyp.mbn
index 582e47e..62cd6ac 100755
Binary files a/firmware-update/hyp.mbn and b/firmware-update/hyp.mbn differ
diff --git a/firmware-update/keymaster.mbn b/firmware-update/keymaster.mbn
index 520c909..c4da02d 100755
Binary files a/firmware-update/keymaster.mbn and b/firmware-update/keymaster.mbn differ
diff --git a/firmware-update/lksecapp.mbn b/firmware-update/lksecapp.mbn
index 9859080..40e0ab1 100755
Binary files a/firmware-update/lksecapp.mbn and b/firmware-update/lksecapp.mbn differ
diff --git a/firmware-update/pmic.elf b/firmware-update/pmic.elf
index 211a0de..9417480 100755
Binary files a/firmware-update/pmic.elf and b/firmware-update/pmic.elf differ
diff --git a/firmware-update/rpm.mbn b/firmware-update/rpm.mbn
index 51db5e9..cdc608d 100755
Binary files a/firmware-update/rpm.mbn and b/firmware-update/rpm.mbn differ
diff --git a/firmware-update/tz.mbn b/firmware-update/tz.mbn
index db3a7d3..dafd816 100755
Binary files a/firmware-update/tz.mbn and b/firmware-update/tz.mbn differ
diff --git a/firmware-update/xbl.elf b/firmware-update/xbl.elf
index 6bcec53..230f1be 100755
Binary files a/firmware-update/xbl.elf and b/firmware-update/xbl.elf differ