[K3 Note General] natong:
Now the Lenovo server changed the last 2 HEX to 8 characters. So we can't brute force to find the direct download link.

We have to use the proxy method to sniff the data. See post#2 below to help us find the OTA link.

Lenovo K3 Note - devicemodel

K50-T5 : China FDD-LTE version

● DEV (Developer) = LenovoK50-T5_ROM_DEV

● ST (Stable) = LenovoK50-T5, LenovoK50-T5_ST_MR1

K50-t3s : China TD-LTE version

● DEV (Developer) = LenovoK50-t3s_ROM_DEV

● ST (Stable) = LenovoK50-t3s

K50a40 : India

1st Branch

● S112 - S121 = LenovoK50a40_ROW (Android 5)

● S322 - S327 = LenovoK50a40_M_ROW (Android 6)

2nd Branch (Mystery branch unknown the differences.)

● S205 = LenovoK50a40_V2_ROW (Android 5)

● S422 - S427 = LenovoK50a40_V2_M_ROW (Android 6)

A7000-a_PLUS : Southeast Asia

● S125 - S184 = LenovoK50a40_AP_ROW (Android 5)

● S308 = LenovoK50a40_AP_M_ROW (Android 6)

Lenovo K3 Note - ROM Type

Full ROM : Complete package

OTA ROM : Over The Air (Only incremental patch update)

Notes

1. K50a40 and A7000-a_PLUS don't have an official full ROM direct download link.

But we can found them leaked out at http://lenovo-forums.ru/forum/507-xxx/

2. A7000-a_PLUS use a different hardware modem.

Download Firmwares

Just add prefix with http://phonedl.ota.lenovomm.com/dls/v6/

K50-T5 - Full ROM – DEV

VIBEUI_V2.5_1515_7.50.1_DEV_K50-T5_WC59.zip

VIBEUI_V2.5_1517_7.83.1_DEV_K50-T5_WC7E.zip

VIBEUI_V2.5_1518_7.98.1_DEV_K50-T5_WCE4.zip

VIBEUI_V2.5_1519_7.113.1_DEV_K50-T5_WC72.zip

VIBEUI_V2.5_1520_7.128.1_DEV_K50-T5_WCA2.zip

VIBEUI_V2.5_1521_7.145.1_DEV_K50-T5_WC92.zip

VIBEUI_V2.5_1522_7.162.1_DEV_K50-T5_WC60.zip

VIBEUI_V2.5_1523_7.175.1_DEV_K50-T5_WCC2.zip

VIBEUI_V2.5_1524_7.197.1_DEV_K50-T5_WCE7.zip

VIBEUI_V2.5_1525_7.216.1_DEV_K50-T5_WC6F.zip

VIBEUI_V2.5_1526_7.234.1_DEV_K50-T5_WC0B.zip

VIBEUI_V2.8_1526_7.80.1_DEV_K50-T5_WC06.zip

VIBEUI_V2.8_1527_7.95.1_DEV_K50-T5_WC3B.zip

VIBEUI_V2.8_1528_7.103.1_DEV_K50-T5_WCBA.zip

VIBEUI_V2.8_1529_7.114.1_DEV_K50-T5_WCC1.zip

VIBEUI_V2.8_1530_7.131.1_DEV_K50-T5_WC77.zip

VIBEUI_V2.8_1531_7.146.1_DEV_K50-T5_WC2C.zip

VIBEUI_V2.8_1532_7.160.1_DEV_K50-T5_WCB7.zip

VIBEUI_V2.8_1533_7.172.1_DEV_K50-T5_WCB8.zip

VIBEUI_V2.8_1534_7.201.1_DEV_K50-T5_WC13.zip

VIBEUI_V2.8_1535_7.212.1_DEV_K50-T5_WC8C.zip

VIBEUI_V2.8_1536_7.222.1_DEV_K50-T5_WCC3.zip

VIBEUI_V2.8_1537_7.232.1_DEV_K50-T5_WCA1.zip

VIBEUI_V2.8_1538_7.241.1_DEV_K50-T5_WC3A.zip

VIBEUI_V2.8_1539_7.251.1_DEV_K50-T5_WCCC.zip

VIBEUI_V2.8_1540_7.265.1_DEV_K50-T5_WC0A.zip

VIBEUI_V2.8_1542_7.282.1_DEV_K50-T5_WC2A.zip

VIBEUI_V2.8_1543_7.291.1_DEV_K50-T5_WC0C.zip

VIBEUI_V3.0_1544_7.303.1_DEV_K50-T5_WC18.zip

VIBEUI_V3.0_1545_7.315.1_DEV_K50-T5_WCFE.zip

VIBEUI_V3.0_1546_7.324.1_DEV_K50-T5_WCF0.zip

VIBEUI_V3.0_1547_7.337.1_DEV_K50-T5_WC83.zip

VIBEUI_V3.0_1548_7.346.1_DEV_K50-T5_WC74.zip

VIBEUI_V3.0_1549_7.358.1_DEV_K50-T5_WC43.zip

VIBEUI_V3.0_1550_7.365.1_DEV_K50-T5_WC0A.zip

VIBEUI_V3.0_1551_7.377.1_DEV_K50-T5_WC1B.zip

VIBEUI_V3.0_1552_7.382.1_DEV_K50-T5_WC53.zip

VIBEUI_V3.0_1553_7.394.1_DEV_K50-T5_WC47569FBB.zip

VIBEUI_V3.0_1602_7.407.1_DEV_K50-T5_WCDC71A17D.zip

VIBEUI_V3.0_1603_7.416.1_DEV_K50-T5_WCB43A66EA.zip

VIBEUI_V3.0_1604_7.424.1_DEV_K50-T5_WC462BAA73.zip

VIBEUI_V3.1_1608_3.177.1_DEV_K50-T5_WC3E719FDB.zip

VIBEUI_V3.1_1609_3.193.1_DEV_K50-T5_WCAF35DF52.zip

VIBEUI_V3.5_1610_3.40.1_DEV_K50-T5_WCAE31C4AB.zip

VIBEUI_V3.5_1611_3.54.1_DEV_K50-T5_WC75EA4EC4.zip

VIBEUI_V3.5_1613_7.17.1_DEV_K50-T5_

VIBEUI_V3.5_1615_7.37.1_DEV_K50-T5_

VIBEUI_V3.5_1617_7.53.1_DEV_K50-T5_

VIBEUI_V3.5_1619_7.69.1_DEV_K50-T5_WC70EA4B67.zip (cr: mppanos)

VIBEUI_V3.5_1621_7.85.1_DEV_K50-T5_WCA03077E1.zip

VIBEUI_V3.5_1629_7.155.1_DEV_K50-T5_WC4E1B7D20.zip (cr: emptywordsss)

K50-T5 - OTA ROM - DEV

VIBEUI_V2.5_1515_7.50.1_DEV_K50-T5_TO_VIBEUI_V2.5_1517_7.83.1_DEV_K50-T5_WC24.zip

VIBEUI_V2.5_1517_7.83.1_DEV_K50-T5_TO_VIBEUI_V2.5_1518_7.98.1_DEV_K50-T5_WC79.zip

VIBEUI_V2.5_1518_7.98.1_DEV_K50-T5_TO_VIBEUI_V2.5_1519_7.113.1_DEV_K50-T5_WC5B.zip

VIBEUI_V2.5_1519_7.113.1_DEV_K50-T5_TO_VIBEUI_V2.5_1520_7.128.1_DEV_K50-T5_WC31.zip

VIBEUI_V2.5_1520_7.128.1_DEV_K50-T5_TO_VIBEUI_V2.5_1521_7.145.1_DEV_K50-T5_WC05.zip

VIBEUI_V2.5_1521_7.145.1_DEV_K50-T5_TO_VIBEUI_V2.5_1522_7.162.1_DEV_K50-T5_WCAA.zip

VIBEUI_V2.5_1522_7.162.1_DEV_K50-T5_TO_VIBEUI_V2.5_1523_7.175.1_DEV_K50-T5_WC0C.zip

VIBEUI_V2.5_1523_7.175.1_DEV_K50-T5_TO_VIBEUI_V2.5_1524_7.197.1_DEV_K50-T5_WC04.zip

VIBEUI_V2.5_1524_7.197.1_DEV_K50-T5_TO_VIBEUI_V2.5_1525_7.216.1_DEV_K50-T5_WC60.zip

VIBEUI_V2.5_1525_7.216.1_DEV_K50-T5_TO_VIBEUI_V2.5_1526_7.234.1_DEV_K50-T5_WC20.zip

VIBEUI_V2.5_1525_7.216.1_DEV_K50-T5_TO_VIBEUI_V2.8_1526_7.80.1_DEV_K50-T5_WC60.zip

VIBEUI_V2.5_1526_7.234.1_DEV_K50-T5_TO_VIBEUI_V2.8_1527_7.95.1_DEV_K50-T5_WC7E.zip

VIBEUI_V2.8_1526_7.80.1_DEV_K50-T5_TO_VIBEUI_V2.8_1527_7.95.1_DEV_K50-T5_WC3F.zip

VIBEUI_V2.8_1527_7.95.1_DEV_K50-T5_TO_VIBEUI_V2.8_1528_7.103.1_DEV_K50-T5_WC01.zip

VIBEUI_V2.8_1528_7.103.1_DEV_K50-T5_TO_VIBEUI_V2.8_1529_7.114.1_DEV_K50-T5_WC0C.zip

VIBEUI_V2.8_1529_7.114.1_DEV_K50-T5_TO_VIBEUI_V2.8_1530_7.131.1_DEV_K50-T5_WCF1.zip

VIBEUI_V2.8_1530_7.131.1_DEV_K50-T5_TO_VIBEUI_V2.8_1531_7.146.1_DEV_K50-T5_WCB3.zip

VIBEUI_V2.8_1531_7.146.1_DEV_K50-T5_TO_VIBEUI_V2.8_1532_7.160.1_DEV_K50-T5_WC35.zip

VIBEUI_V2.8_1532_7.160.1_DEV_K50-T5_TO_VIBEUI_V2.8_1533_7.172.1_DEV_K50-T5_WCCB.zip

VIBEUI_V2.8_1533_7.172.1_DEV_K50-T5_TO_VIBEUI_V2.8_1534_7.201.1_DEV_K50-T5_WC22.zip

VIBEUI_V2.8_1534_7.201.1_DEV_K50-T5_TO_VIBEUI_V2.8_1535_7.212.1_DEV_K50-T5_WC43.zip

VIBEUI_V2.8_1535_7.212.1_DEV_K50-T5_TO_VIBEUI_V2.8_1536_7.222.1_DEV_K50-T5_WC03.zip

VIBEUI_V2.8_1536_7.222.1_DEV_K50-T5_TO_VIBEUI_V2.8_1537_7.232.1_DEV_K50-T5_WCF5.zip

VIBEUI_V2.8_1537_7.232.1_DEV_K50-T5_TO_VIBEUI_V2.8_1538_7.241.1_DEV_K50-T5_WC3A.zip

VIBEUI_V2.8_1538_7.241.1_DEV_K50-T5_TO_VIBEUI_V2.8_1539_7.251.1_DEV_K50-T5_WC19.zip

VIBEUI_V2.8_1539_7.251.1_DEV_K50-T5_TO_VIBEUI_V2.8_1540_7.265.1_DEV_K50-T5_WC90.zip

VIBEUI_V2.8_1540_7.265.1_DEV_K50-T5_TO_VIBEUI_V2.8_1542_7.282.1_DEV_K50-T5_WC7F.zip

VIBEUI_V2.8_1542_7.282.1_DEV_K50-T5_TO_VIBEUI_V2.8_1543_7.291.1_DEV_K50-T5_WCC0.zip

VIBEUI_V2.8_1543_7.291.1_DEV_K50-T5_TO_VIBEUI_V3.0_1544_7.303.1_DEV_K50-T5_WC5C.zip

VIBEUI_V3.0_1544_7.303.1_DEV_K50-T5_TO_VIBEUI_V3.0_1545_7.315.1_DEV_K50-T5_WC23.zip

VIBEUI_V3.0_1545_7.315.1_DEV_K50-T5_TO_VIBEUI_V3.0_1546_7.324.1_DEV_K50-T5_WC35.zip

VIBEUI_V3.0_1546_7.324.1_DEV_K50-T5_TO_VIBEUI_V3.0_1547_7.337.1_DEV_K50-T5_WC64.zip

VIBEUI_V3.0_1547_7.337.1_DEV_K50-T5_TO_VIBEUI_V3.0_1548_7.346.1_DEV_K50-T5_WC3F.zip

VIBEUI_V3.0_1548_7.346.1_DEV_K50-T5_TO_VIBEUI_V3.0_1549_7.358.1_DEV_K50-T5_WC46.zip

VIBEUI_V3.0_1549_7.358.1_DEV_K50-T5_TO_VIBEUI_V3.0_1550_7.365.1_DEV_K50-T5_WCE7.zip

VIBEUI_V3.0_1550_7.365.1_DEV_K50-T5_TO_VIBEUI_V3.0_1551_7.377.1_DEV_K50-T5_WCB2.zip

VIBEUI_V3.0_1551_7.377.1_DEV_K50-T5_TO_VIBEUI_V3.0_1552_7.382.1_DEV_K50-T5_WC98.zip

VIBEUI_V3.0_1552_7.382.1_DEV_K50-T5_TO_VIBEUI_V3.0_1553_7.394.1_DEV_K50-T5_WC80525F6D.zip

VIBEUI_V3.0_1553_7.394.1_DEV_K50-T5_TO_VIBEUI_V3.0_1602_7.407.1_DEV_K50-T5_WCDE0FA679.zip

VIBEUI_V3.0_1602_7.407.1_DEV_K50-T5_TO_VIBEUI_V3.0_1603_7.416.1_DEV_K50-T5_WC430D3F26.zip

VIBEUI_V3.0_1603_7.416.1_DEV_K50-T5_TO_VIBEUI_V3.0_1604_7.424.1_DEV_K50-T5_WC1FDD4C08.zip

VIBEUI_V3.0_1604_7.424.1_DEV_K50-T5_TO_VIBEUI_V3.1_1608_3.177.1_DEV_K50-T5_

VIBEUI_V3.1_1608_3.177.1_DEV_K50-T5_TO_VIBEUI_V3.1_1609_3.193.1_DEV_K50-T5_

VIBEUI_V3.1_1609_3.193.1_DEV_K50-T5_TO_VIBEUI_V3.5_1610_3.40.1_DEV_K50-T5_

VIBEUI_V3.5_1610_3.40.1_DEV_K50-T5_TO_VIBEUI_V3.5_1611_3.54.1_DEV_K50-T5_

VIBEUI_V3.5_1611_3.54.1_DEV_K50-T5_TO_VIBEUI_V3.5_1613_7.17.1_DEV_K50-T5_WC5CBB18DB.zip

VIBEUI_V3.5_1613_7.17.1_DEV_K50-T5_TO_VIBEUI_V3.5_1615_7.37.1_DEV_K50-T5_WC302B75D9.zip (cr: stone_henge)

VIBEUI_V3.5_1615_7.37.1_DEV_K50-T5_TO_VIBEUI_V3.5_1617_7.53.1_DEV_K50-T5_WCC8C4ED71.zip (cr: stone_henge)

VIBEUI_V3.5_1617_7.53.1_DEV_K50-T5_TO_VIBEUI_V3.5_1619_7.69.1_DEV_K50-T5_WCA6C37B9D.zip (cr: stone_henge)

VIBEUI_V3.5_1619_7.69.1_DEV_K50-T5_TO_VIBEUI_V3.5_1621_7.85.1_DEV_K50-T5_WC33CBB93A.zip (cr: stone_henge)

VIBEUI_V3.5_1621_7.85.1_DEV_K50-T5_TO_VIBEUI_V3.5_1623_7.103.1_DEV_K50-T5_WC2C385F4C.zip (cr: stone_henge)

VIBEUI_V3.5_1623_7.103.1_DEV_K50-T5_TO_VIBEUI_V3.5_1624_7.107.1_DEV_K50-T5_WC910D8E7B.zip (cr: stone_henge)

VIBEUI_V3.5_1624_7.107.1_DEV_K50-T5_TO_VIBEUI_V3.5_1625_7.115.1_DEV_K50-T5_WC0AB86847.zip (cr: stone_henge)

VIBEUI_V3.5_1625_7.115.1_DEV_K50-T5_TO_VIBEUI_V3.5_1626_7.124.1_DEV_K50-T5_WC85B84D8E.zip

VIBEUI_V3.5_1626_7.124.1_DEV_K50-T5_TO_VIBEUI_V3.5_1627_7.133.1_DEV_K50-T5_WCFEDD56E7.zip

VIBEUI_V3.5_1627_7.133.1_DEV_K50-T5_TO_VIBEUI_V3.5_1628_7.142.1_DEV_K50-T5_WCFF0D93BF.zip

VIBEUI_V3.5_1628_7.142.1_DEV_K50-T5_TO_VIBEUI_V3.5_1629_7.155.1_DEV_K50-T5_WCD2911AA2.zip

K50-T5 - Full ROM - ST

VIBEUI_V2.5_1511_5.444.1_ST_K50-T5_WC7B.zip

VIBEUI_V2.5_1512_5.495.1_ST_K50-T5_WC29.zip

VIBEUI_V2.5_1516_5.654.1_ST_K50-T5_WC6F.zip

VIBEUI_V2.5_1518_5.744.1_ST_K50-T5_WC9F.zip

VIBEUI_V2.5_1522_5.882.1_ST_K50-T5_WCCD.zip

VIBEUI_V2.5_1524_5.955.1_ST_K50-T5_WCA8.zip

VIBEUI_V2.5_1529_5.1063.1_ST_K50-T5_WCBD.zip

VIBEUI_V2.8_1535_5.128.1_ST_K50-T5_WC23.zip

VIBEUI_V2.8_1544_5.192.1_ST_K50-T5_WC61.zip or WC66.zip

VIBEUI_V3.0_1604_7.209.1_ST_K50-T5_WC58CB6441.zip or WC7438FA91.zip

VIBEUI_V3.1_1613_5.252.1_ST_K50-T5_WC54694E5B.zip (cr: stone_henge)

VIBEUI_V3.1_1614_5.294.1_ST_K50-T5_WCC8A4F65E.zip (cr: POQDavid)

VIBEUI_V3.1_1622_5.440.1_ST_K50-T5_WC6B265104.zip

K50-T5 - OTA ROM - ST

VIBEUI_V2.5_1511_5.444.1_ST_K50-T5_TO_VIBEUI_V2.5_1512_5.495.1_ST_K50-T5_WCCA.zip

VIBEUI_V2.5_1512_5.495.1_ST_K50-T5_TO_VIBEUI_V2.5_1516_5.654.1_ST_K50-T5_WCB5.zip

VIBEUI_V2.5_1516_5.654.1_ST_K50-T5_TO_VIBEUI_V2.5_1518_5.744.1_ST_K50-T5_WC9E.zip

VIBEUI_V2.5_1518_5.744.1_ST_K50-T5_TO_VIBEUI_V2.5_1522_5.882.1_ST_K50-T5_WCCD.zip

VIBEUI_V2.5_1522_5.882.1_ST_K50-T5_TO_VIBEUI_V2.5_1524_5.955.1_ST_K50-T5_WC75.zip

VIBEUI_V2.5_1524_5.955.1_ST_K50-T5_TO_VIBEUI_V2.5_1529_5.1063.1_ST_K50-T5_WC58.zip

VIBEUI_V2.5_1529_5.1063.1_ST_K50-T5_TO_VIBEUI_V2.8_1535_5.128.1_ST_K50-T5_WC80.zip

VIBEUI_V2.8_1535_5.128.1_ST_K50-T5_TO_VIBEUI_V2.8_1544_5.192.1_ST_K50-T5_WC22.zip

VIBEUI_V2.8_1544_5.192.1_ST_K50-T5_TO_VIBEUI_V3.0_1604_7.209.1_ST_K50-T5_

VIBEUI_V3.0_1604_7.209.1_ST_K50-T5_TO_VIBEUI_V3.1_1613_5.252.1_ST_K50-T5_

VIBEUI_V3.1_1613_5.252.1_ST_K50-T5_TO_VIBEUI_V3.1_1614_5.294.1_ST_K50-T5_

VIBEUI_V3.1_1614_5.294.1_ST_K50-T5_TO_VIBEUI_V3.1_1622_5.440.1_ST_K50-T5_WCA676584C.zip (cr: stone_henge)

K50-t3s - Full ROM – DEV

VIBEUI_V3.5_1615_7.15.1_DEV_K50-t3s_WCF7C7A411.zip (cr: mppanos)

VIBEUI_V3.5_1617_7.28.1_DEV_K50-t3s_

VIBEUI_V3.5_1619_7.45.1_DEV_K50-t3s_WCAFE35C0F.zip (cr: mppanos)

VIBEUI_V3.5_1621_7.62.1_DEV_K50-t3s_WC66355725.zip

K50-t3s - OTA ROM - DEV

VIBEUI_V3.5_1615_7.15.1_DEV_K50-t3s_TO_VIBEUI_V3.5_1617_7.28.1_DEV_K50-t3s_WC80146971.zip (cr: mppanos)

VIBEUI_V3.5_1617_7.28.1_DEV_K50-t3s_TO_VIBEUI_V3.5_1619_7.45.1_DEV_K50-t3s_

VIBEUI_V3.5_1619_7.45.1_DEV_K50-t3s_TO_VIBEUI_V3.5_1621_7.62.1_DEV_K50-t3s_WC18120EA4.zip

K50-t3s - Full ROM – ST

VIBEUI_V3.1_1618_5.114.1_ST_K50-t3s_WC83F43C66.zip (cr: mppanos)

K50a40 - OTA ROM

K50a40_S112_150610_ROW_TO_K50a40_S114_150618_ROW_WCDE.zip

K50a40_S114_150618_ROW_TO_K50a40_S117_150706_ROW_WCDE.zip

K50a40_S114_150618_ROW_TO_K50a40_S121_150813_ROW_WC76.zip

K50a40_S117_150706_ROW_TO_K50a40_S121_150813_ROW_WC0C.zip

K50a40_S121_150813_ROW_TO_K50a40_S322_160314_ROW_WC9C36CE4A.zip

K50a40_S322_160314_ROW_TO_K50a40_S324_160328_ROW_WC3AE27953.zip

K50a40_S324_160328_ROW_TO_K50a40_S327_160517_ROW_WC33815BF9.zip

K50a40_S205_151118_ROW_TO_K50a40_S422_160315_ROW_WC46455750.zip (cr: Alexey71)

K50a40_S422_160315_ROW_TO_K50a40_S424_160328_ROW_WC655382B6.zip (cr: Alexey71)

K50a40_S424_160328_ROW_TO_K50a40_S427_160518_ROW_WCE43BEDCA.zip

K50a40_S427_160518_ROW_TO_K50a40_S433_160909_ROW_WC47D92FAE.zip

A7000+ - OTA ROM

A7000-a_PLUS_S125_150723_ROW_TO_A7000-a_PLUS_S141_150902_ROW_WCBB.zip

A7000-a_PLUS_S141_150902_ROW_TO_A7000-a_PLUS_S150_151014_ROW_WC3D.zip

A7000-a_PLUS_S150_151014_ROW_TO_A7000-a_PLUS_S177_160121_ROW_WC0BA537A3.zip

A7000-a_PLUS_S177_160121_ROW_TO_A7000-a_PLUS_S184_160526_ROW_WCA3E10A6E.zip

A7000-a_PLUS_S184_160526_ROW_TO_A7000-a_PLUS_S308_160618_ROW_WCA195AB8B.zip