Pongo el listado de redes que le envié según modelo para que veáis que le faltan muchas:
N986U
2G GSM: GSM850, GSM900, DCS1800, PCS1900
2G CDMA: 800, 1900 MHz
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
3G CDMA: CDMA2000, EV-DO: 800, 1900 MHz
4G FDD LTE: Bands B13/B4/B2/B5/B66/B48
4G TDD LTE: Bands B38(2600), B39(1900), B40(2300), B41(2500), B46(5200)
5G: Bands n260, n261
N9860
2G GSM: GSM850, GSM900, DCS1800, PCS1900
3G WCDMA: B1(2100), B2(1900), B5(850), B8(900)
4G FDD-LTE: B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B18(800), B19(800), B20(800), B25(1900), B26(850), B28(700)
4G TDD-LTE: B34(2010), B38(2600), B39(1900), B40(2300), B41(2500)
5G Sub-6 FDD: N1(2100)
5G Sub-6 TDD: N41(2500), N78(3500), N79(4500)
N986F
2G GSM: GSM850, GSM900, DCS1800, PCS1900
3G UMTS, HSPA+: 850, 900, 1700, 1900, 2100 MHz
4G FDD LTE: Bands B1(2100), B2(1900), B3(1800), B4(AWS), B5(850), B7(2600), B8(900), B12(700), B13(700), B17(700), B18(800), B19(800), B20(800), B25(1900), B26(850), B28(700), B32(1500), B66(AWS-3)
4G TDD LTE: Bands B38(2600), B39(1900), B40(2300), B41(2500)
5G FDD Sub6: Bands N1(2100), N3(1800), N5(850), N7(2600), N8(900), N28(700)
5G TDD Sub6: Bands N40(2300), N77(3700), N78(3500)