Rubuta ci gaba don wannan sakin layi - Bayan ƙarshen sojojin kasashen waje na Fengtian, Nechaev ya koma Manchuria don yin ritaya, yana zaune a Dalian. Duk da haka, akwai jita-jita a farkon 1929 cewa Nechaev ya taimaka wa Zhang Zongchang a lokacin tawaye don dawo da Shandong. Kodayake ba a tabbatar da waɗannan jita-jita ba, masanin tarihi Philip S. Jowett ya yi la'akari da cewa Nechaev ya taimaka wa tsohon shugabansa. Ko yaya dai, tawayen ya kasa. A ƙarshen 1929, rikici ya ɓarke
tsakanin gwamnatin kasar Sin da Tarayyar Soviet. Da sauri Sinawa suka sake ba da farin Rashawan da ke zaune a Manchuria don taimaka musu a kan Sojojin Red; Hukumomin Soviet sun yi imanin cewa Nechaev yana cikin kwamandojin sojojin fararen Rasha da ke yaƙi da Sojojin Arewa maso Gabashin China. Wani asusun rikici ya bayyana cewa rukunin White Russian karkashin umarnin Nechaev ya ci gaba da mamaye yankin Soviet ko da bayan tashin hankali ya ƙare a hukumance, kuma ya yi iƙirarin ƙarya cewa an kashe shi a cikin rikici da masu tsaron kan iyaka na Soviet a watan Janairun 1930.